CA1070098A - End mill tool holder body and tool - Google Patents
End mill tool holder body and toolInfo
- Publication number
- CA1070098A CA1070098A CA312,049A CA312049A CA1070098A CA 1070098 A CA1070098 A CA 1070098A CA 312049 A CA312049 A CA 312049A CA 1070098 A CA1070098 A CA 1070098A
- Authority
- CA
- Canada
- Prior art keywords
- insert
- draw bar
- slot
- tool
- flat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Cutting Tools, Boring Holders, And Turrets (AREA)
Abstract
ABSTRACT
An end mill tool holder body and a tool suitable for use in a boring mill or any other metal-cutting machine. The tool has a round body with shank to suit the machine tool and flat, laterally-disposed surface at one end of the body terminating in a shoulder. An axial bore extends through the body and a draw bar in the bore has a pin which extends through an opening in a cutting insert and a nut on the other end of the draw bar clamps the cutting insert against the shoulder, holding it rigidly in position for milling or boring.
The inserts are of the throw-away type and are made of precision dimension so that the body and cutting insert can be used in a computerized operation.
An end mill tool holder body and a tool suitable for use in a boring mill or any other metal-cutting machine. The tool has a round body with shank to suit the machine tool and flat, laterally-disposed surface at one end of the body terminating in a shoulder. An axial bore extends through the body and a draw bar in the bore has a pin which extends through an opening in a cutting insert and a nut on the other end of the draw bar clamps the cutting insert against the shoulder, holding it rigidly in position for milling or boring.
The inserts are of the throw-away type and are made of precision dimension so that the body and cutting insert can be used in a computerized operation.
Description
General Descri~tion of the Invention The tool and body disclosed herein are suitable for use in a vertical boring mill or any other metal-cutting machine wherein the cutting insert is of the throw-away type so that the machine can be set up and the insert replaced without upsetting the se~up of the machine.
Obiects of the Invention It is an object of the invention to provide an improved boring mill and mllling machlne tool.
~Another object of the invention is to~provide an improved tool holder and replaceable cutting insert.
!
I Another object of the invention is to provide an improved i~ tool holder which is simple in construction, economical to manu-i facture and simple and efficient to use.
., Summary of the Invention A tool holder in accordance with one form of the invention includes a hody with a central axial bore and a slot at one end, a draw bar in the bore with a slot in it and a cutting insert in both the slot in the bore and the slot in the , .
- , ~
', ~ )7~
draw bar and attached to the draw bar. The insert is rectangular in shape and has flat planar sides resting on the flat sides of the slots and a notch in one end of the insert that receives the draw bar. A pin extends through the draw bar and through the insert and retaining means is provided on one end of the draw bar urging the draw bar to draw the insert against the draw bar thereby rigidly clamping it in position.
In one aspect the invention provides in combination, a generally cylindrical tool holder body, a draw bar, and a cutting insert comprising, a laterally and longitudinally ex-tending slot in one end of said body, said slot being defined by two flat surfaces extending generally parallel to the central axis of said cylindrical body, an axial cylindrical bore of sub-stantially uniform size in said body generally coaxial to the central axis of said cylindrical body and extending parallel to the sides of said slot, said slot terminating in flat shoulders disposed generally per~endicular to said central axis of said cylindrical body and one said shoulder being disposed at each side of said cylindrical bore, said insert being generally rectangular in shape and having flat planar side surfaces resting on said flat surfaces, a notch in one end of said insert, said notch registering with an end of said cylindrical bore and one flat end surface on said insert at each side of said notch resting on said shoulders on said body at each side of said bore, said notch in said insert having a wldth equal to the diameter of said bore through said body, said draw bar having a diameter substantially equal to the diameter of said axial cylindrical bore in said body and having a slot in one end, said slot in said draw bar having flat side surfaces generally co-planar with and resting on said flat side surfaces of said insert, said slot in sa:d draw bar receiving said insert, the side edges ~/ ~
~ - la -;~
~ 7~
of said notch in said insert engaging the side edges of said draw bar holding said insert against lateral movement, a laterally extending hole in said draw bar and a hole in said insert and a pin extending through said hole in said draw bar and through sald hole in said insert holdi.ng said insert to said draw bar, retaining means on said draw bar engaging said body urging said draw bar to draw said surfaces at the sides of said notch in said insert against said shoulders on said body whereby said insert is held in rigid clamped relation to said body.
With the above and other objects in view, the present invention consists of the combination and arrangement of parts hereinafter more fully described, illustrated in the accompanying ~ lb -~ ~7~g~9~ ~
1 drawing and more particularly pointed out in the appended claims,
Obiects of the Invention It is an object of the invention to provide an improved boring mill and mllling machlne tool.
~Another object of the invention is to~provide an improved tool holder and replaceable cutting insert.
!
I Another object of the invention is to provide an improved i~ tool holder which is simple in construction, economical to manu-i facture and simple and efficient to use.
., Summary of the Invention A tool holder in accordance with one form of the invention includes a hody with a central axial bore and a slot at one end, a draw bar in the bore with a slot in it and a cutting insert in both the slot in the bore and the slot in the , .
- , ~
', ~ )7~
draw bar and attached to the draw bar. The insert is rectangular in shape and has flat planar sides resting on the flat sides of the slots and a notch in one end of the insert that receives the draw bar. A pin extends through the draw bar and through the insert and retaining means is provided on one end of the draw bar urging the draw bar to draw the insert against the draw bar thereby rigidly clamping it in position.
In one aspect the invention provides in combination, a generally cylindrical tool holder body, a draw bar, and a cutting insert comprising, a laterally and longitudinally ex-tending slot in one end of said body, said slot being defined by two flat surfaces extending generally parallel to the central axis of said cylindrical body, an axial cylindrical bore of sub-stantially uniform size in said body generally coaxial to the central axis of said cylindrical body and extending parallel to the sides of said slot, said slot terminating in flat shoulders disposed generally per~endicular to said central axis of said cylindrical body and one said shoulder being disposed at each side of said cylindrical bore, said insert being generally rectangular in shape and having flat planar side surfaces resting on said flat surfaces, a notch in one end of said insert, said notch registering with an end of said cylindrical bore and one flat end surface on said insert at each side of said notch resting on said shoulders on said body at each side of said bore, said notch in said insert having a wldth equal to the diameter of said bore through said body, said draw bar having a diameter substantially equal to the diameter of said axial cylindrical bore in said body and having a slot in one end, said slot in said draw bar having flat side surfaces generally co-planar with and resting on said flat side surfaces of said insert, said slot in sa:d draw bar receiving said insert, the side edges ~/ ~
~ - la -;~
~ 7~
of said notch in said insert engaging the side edges of said draw bar holding said insert against lateral movement, a laterally extending hole in said draw bar and a hole in said insert and a pin extending through said hole in said draw bar and through sald hole in said insert holdi.ng said insert to said draw bar, retaining means on said draw bar engaging said body urging said draw bar to draw said surfaces at the sides of said notch in said insert against said shoulders on said body whereby said insert is held in rigid clamped relation to said body.
With the above and other objects in view, the present invention consists of the combination and arrangement of parts hereinafter more fully described, illustrated in the accompanying ~ lb -~ ~7~g~9~ ~
1 drawing and more particularly pointed out in the appended claims,
2 it being Inderstood that changes may be made in form, size,
3 proportions and minor details of construction without departing
4 from the spirit or sacrificing any of the advantages of the invention.
Fig. 1 is a side view of a tool holder and insert accord 9 ing to the invention.
Fig. 2 is an end view of the tool holder and insert shown in Fig. 1.
~2 Fig. 3 is an end view of the insert shown in Figs. 1 18 and 2.
Fig. 4 is a side view of the insert.
Fig. 4-A is a partial end view of the insert shown in ~6 Fig. 4.
~7 Fig. 5 is a side view of another embodiment of the ~8 invention of a tool holder and insert.
19 Fig. 6 is an end view of the insert shown in Fig. 5.
Fig. 7 is an enlarged side ~iew of -the body of the tool 21 holder shown in Fig. 5.
~2 Fig. 8 is a side view of the insert shown in Flg. 5.
23 Fig. 9 is an edge view of the insert shown in Fig. 8.
24 Figs. 10 and 11 are views of the draw bar used in the 2~ embodiment of the invention shown in Fig. 5.
26 Fig. 12 is a side view of another embodiment of the 27 tool holder.
28 Fig. 13 is an end view of the embodiment in Fig. 12.
DETAILED PESCRIPTION ~F THE DRAWINGS
. _ _ 31 Now, with more particular reference -to the drawings, 32 the combination body and insert is made up of the ge~erally .~, . , -107VV9~1 1 ¦cylindrical bod~ 10 which has insert 11 supportecl a-t one end. The 2 ¦body has a flattened surface 12 adjacent the end having the insert 3 ¦ and one face of the insert rests on -the flattened surface. The ¦ flattened surface terminates ad~acent the enlarged part of the bod ¦ 10 in a shoulder 13 which rests against an end of the insert 11.
6 ¦ The flattened surface is generally perpendicular to the shoulder a d 7 ¦ the insert rests against it.
8 ¦ The insert is generally rectangular in shape and has 9 ¦ two flat planar sides generally parallel to each other and a flat ¦ end that engages the shoulder 13. A longitudinally-extending bore ¦ 14 extends through the body and is offset from the center thereof 12 and the draw bar 15 is slidably received in the bore. The draw 13 bar 15 has a threaded end 16 which receives the nut 18. The end 1 has a pin 19 on it which extends perpendicular to the flat surface and extends up -through the hole 30 in the insert 11.
~6 Thus, when the nut 18 is tightened, the pin 19 draws the insert firmly against the shoulder 13 and holds it in place.
8 When a force is exerted on the cutting end 21 of the insert or on ~9 the edge 22, the insert will be urged more firmly into engagement With the shoulder and against the lateral shoulder 23.
21 The body 10 may be o~ a precise diameter and the length ~2 of the enlarged part lOB of the body may be of precise length as 23 well as the reduced size portion lOA, having the flattened surface 24 12, thereon. Thus, the tool can be used for computerized machines since inserts will be of predetermined size and will be held in 26 precise position by draw bar 15 and may be replaced without chang-2~ ing the setting of the machine 2~ In the embodiment of the invention illustrated in Figs.
29 5-11, another embodiment of the invention is shown wherein the ~ tool holder has a generally cylindrical body 110 which supports an 3~ insert 111 on one end. The insert has two Elat faces that are re-32 ceived in the slot 112 which has a first ~lat sur~Eace 112' and a ~` 1 ~7~9~3 ~¦ second flat surface 113' and a hottom shoulder 143. The body has 2 ¦ an a~ial bore 114 which receives the dxaw bar 115 which has a 3~ threaded end 116 that receives the nut 118. The draw bar 115 has ~¦ a slot 123 ~7hich receives the inser-t 111. Insert 111 has a notch ~ ¦between clamping shoulders 131 and 132. Thls no-tch receives the 6 ¦end of draw bar 115 adjacent hole 126 and holds the insert firmly 7 ¦against lateral movement. The pin 119 extends through the opening 8 ¦ 126 in the draw bar 115. The pin i~ ~f a length equivalent to the 9 ¦ diameter of the draw bar 115 and, when the draw bar is pulled into 0 ¦the bore 114, with the insert 111 in slot 123 and the pin 119 in 1~ ¦place, the pin is trapped in the bore 114 and cannot fall out of 12 ¦the insert.
13 ¦ The insert has a notch 114' and two parallel sides 120 a d 14 124 and side cutting edges 121 and 122, and end edges 127 and 128.
~ Draw bar 115 pulls insert 111 bac]c, clamping surfaces 131 and 132 16 of the insert against the shoulders 136 and 137 at either side of ~7 slot 112 in body 110. The end of the body is flattened at 134 ~8 and 135 forming surfaces disposed at approximately 45 to a side 19 113 of slot 112.
It will be seen that the surface 141 on the distal end 21 of insert5 incline outwardly from the center 142 of the end of the 2~ inse~t. This reverse lead at center makes possible the boring int 23 most solid materials~
24 Now, with xegard to the embodiment of the invention show in F.igs. 12 and 13, the tool has a body 210 with an insert 211 26 similar to the insert 11 shown in the embodiment of Figs. 5-11.
~7 The body has a slot 212 which receives the insert 211 and the ~ shoulder 231 and 232 rest on the ends of the slot. A wide hole 29 214 is formed in the body and the draw bar 215 is received in the hole 214. The draw bar has a slot similar to the slot 123 on 31 Fig. 11 which receives the pin 221 which li~ewise extends through 82 the hole 230 in the insert. The draw bar 215 has a V-shaped ~roov 33 ¦~ ~16 and the t screw 218 is threadably received in a threaded hol~¦
.
~7~
of f set from the center of the groove in the body and has a conical 2 point which enc~ages the side 240' of the groove 216 remote from the 3 insert 211 holding the insert 211 rigidly agains-t the shoulder of 4 -the body. This body like the o-thers shown, can be inserted into a
Fig. 1 is a side view of a tool holder and insert accord 9 ing to the invention.
Fig. 2 is an end view of the tool holder and insert shown in Fig. 1.
~2 Fig. 3 is an end view of the insert shown in Figs. 1 18 and 2.
Fig. 4 is a side view of the insert.
Fig. 4-A is a partial end view of the insert shown in ~6 Fig. 4.
~7 Fig. 5 is a side view of another embodiment of the ~8 invention of a tool holder and insert.
19 Fig. 6 is an end view of the insert shown in Fig. 5.
Fig. 7 is an enlarged side ~iew of -the body of the tool 21 holder shown in Fig. 5.
~2 Fig. 8 is a side view of the insert shown in Flg. 5.
23 Fig. 9 is an edge view of the insert shown in Fig. 8.
24 Figs. 10 and 11 are views of the draw bar used in the 2~ embodiment of the invention shown in Fig. 5.
26 Fig. 12 is a side view of another embodiment of the 27 tool holder.
28 Fig. 13 is an end view of the embodiment in Fig. 12.
DETAILED PESCRIPTION ~F THE DRAWINGS
. _ _ 31 Now, with more particular reference -to the drawings, 32 the combination body and insert is made up of the ge~erally .~, . , -107VV9~1 1 ¦cylindrical bod~ 10 which has insert 11 supportecl a-t one end. The 2 ¦body has a flattened surface 12 adjacent the end having the insert 3 ¦ and one face of the insert rests on -the flattened surface. The ¦ flattened surface terminates ad~acent the enlarged part of the bod ¦ 10 in a shoulder 13 which rests against an end of the insert 11.
6 ¦ The flattened surface is generally perpendicular to the shoulder a d 7 ¦ the insert rests against it.
8 ¦ The insert is generally rectangular in shape and has 9 ¦ two flat planar sides generally parallel to each other and a flat ¦ end that engages the shoulder 13. A longitudinally-extending bore ¦ 14 extends through the body and is offset from the center thereof 12 and the draw bar 15 is slidably received in the bore. The draw 13 bar 15 has a threaded end 16 which receives the nut 18. The end 1 has a pin 19 on it which extends perpendicular to the flat surface and extends up -through the hole 30 in the insert 11.
~6 Thus, when the nut 18 is tightened, the pin 19 draws the insert firmly against the shoulder 13 and holds it in place.
8 When a force is exerted on the cutting end 21 of the insert or on ~9 the edge 22, the insert will be urged more firmly into engagement With the shoulder and against the lateral shoulder 23.
21 The body 10 may be o~ a precise diameter and the length ~2 of the enlarged part lOB of the body may be of precise length as 23 well as the reduced size portion lOA, having the flattened surface 24 12, thereon. Thus, the tool can be used for computerized machines since inserts will be of predetermined size and will be held in 26 precise position by draw bar 15 and may be replaced without chang-2~ ing the setting of the machine 2~ In the embodiment of the invention illustrated in Figs.
29 5-11, another embodiment of the invention is shown wherein the ~ tool holder has a generally cylindrical body 110 which supports an 3~ insert 111 on one end. The insert has two Elat faces that are re-32 ceived in the slot 112 which has a first ~lat sur~Eace 112' and a ~` 1 ~7~9~3 ~¦ second flat surface 113' and a hottom shoulder 143. The body has 2 ¦ an a~ial bore 114 which receives the dxaw bar 115 which has a 3~ threaded end 116 that receives the nut 118. The draw bar 115 has ~¦ a slot 123 ~7hich receives the inser-t 111. Insert 111 has a notch ~ ¦between clamping shoulders 131 and 132. Thls no-tch receives the 6 ¦end of draw bar 115 adjacent hole 126 and holds the insert firmly 7 ¦against lateral movement. The pin 119 extends through the opening 8 ¦ 126 in the draw bar 115. The pin i~ ~f a length equivalent to the 9 ¦ diameter of the draw bar 115 and, when the draw bar is pulled into 0 ¦the bore 114, with the insert 111 in slot 123 and the pin 119 in 1~ ¦place, the pin is trapped in the bore 114 and cannot fall out of 12 ¦the insert.
13 ¦ The insert has a notch 114' and two parallel sides 120 a d 14 124 and side cutting edges 121 and 122, and end edges 127 and 128.
~ Draw bar 115 pulls insert 111 bac]c, clamping surfaces 131 and 132 16 of the insert against the shoulders 136 and 137 at either side of ~7 slot 112 in body 110. The end of the body is flattened at 134 ~8 and 135 forming surfaces disposed at approximately 45 to a side 19 113 of slot 112.
It will be seen that the surface 141 on the distal end 21 of insert5 incline outwardly from the center 142 of the end of the 2~ inse~t. This reverse lead at center makes possible the boring int 23 most solid materials~
24 Now, with xegard to the embodiment of the invention show in F.igs. 12 and 13, the tool has a body 210 with an insert 211 26 similar to the insert 11 shown in the embodiment of Figs. 5-11.
~7 The body has a slot 212 which receives the insert 211 and the ~ shoulder 231 and 232 rest on the ends of the slot. A wide hole 29 214 is formed in the body and the draw bar 215 is received in the hole 214. The draw bar has a slot similar to the slot 123 on 31 Fig. 11 which receives the pin 221 which li~ewise extends through 82 the hole 230 in the insert. The draw bar 215 has a V-shaped ~roov 33 ¦~ ~16 and the t screw 218 is threadably received in a threaded hol~¦
.
~7~
of f set from the center of the groove in the body and has a conical 2 point which enc~ages the side 240' of the groove 216 remote from the 3 insert 211 holding the insert 211 rigidly agains-t the shoulder of 4 -the body. This body like the o-thers shown, can be inserted into a
5 boring machine or any other metal cut-ting machine. The inser-t 211
6 has cutting edges 228 and 22~ similar to the cutting edges on the
7 insert shown in Figs. 8 and 9.
8 The foregoing specification sets forth the invention in
9 its preferred, practical forms but the structure shown is capable 0 of modification with a range of equival.ents without departing from the invention which is to be understood is broadly novel as is ~ comm surate with the appended claims.
~S
2~
~S
2~
Claims (10)
1. In combination, a generally cylindrical tool holder body, a draw bar, and a cutting insert comprising, a laterally and longitudinally extending slot in one end of said body, said slot being defined by two flat surfaces extending generally parallel to the central axis of said cylindrical body, an axial cylindrical bore of substantially uniform size in said body generally coaxial to the central axis of said cylindrical body and extending parallel to the sides of said slot, said slot terminating in flat shoulders disposed generally perpendicular to said central axis of said cylindrical body and one said shoulder being disposed at each side of said cylindrical bore, said insert being generally rectangular in shape and having flat planar side surfaces resting on said flat surfaces, a notch in one end of said insert, said notch registering with an end of said cylindrical bore and one flat end surface on said insert at each side of said notch resting on said shoulders on said body at each side of said bore, said notch in said insert having a width equal to the diameter of said bore through said body, said draw bar having a diameter substantially equal to the diameter of said axial cylindrical bore in said body and having a slot in one end, said slot in said draw bar having flat side surfaces generally co-planar with and resting on said flat side surfaces of said insert, said slot in said draw bar receiving said insert, the side edges of said notch in said insert engaging the side edges of said draw bar holding said insert against lateral movement, a laterally extending hole in said draw bar and a hole in said insert and a pin extending through said hole in said draw bar and through said hole in said insert holding said insert to said draw bar, retaining means on said draw bar engaging said body urging said draw bar to draw said surfaces at the sides of said notch in said insert against said shoulders on said body whereby said insert is held in rigid clamped relation to said body.
2. The combination recited in claim 1 wherein said insert extends beyond the side of two said side edges and an end of said body providing said end cutting edge and said side cutting edge and providing a second side cutting edge opposite said first mentioned side cutting edge for boring holes.
3. The combination recited in claim 1 wherein said end of said body adjacent said slot therein has two flattened surfaces parallel to each other and disposed at approximately 45 degrees to said slot in said body.
4. The combination recited in claim 3 wherein the end of said body having said slot therein is generally cylindrical and has a smaller diameter than the end remote from said slot in said body.
5. The tool holder body and cutting tool recited in claim 1 wherein said retaining means comprises, threaded means on the end of said draw bar remote from said slot and a nut on said threaded means for retaining said tool in said bore.
6. The tool recited in claim 1 wherein said retaining means comprises, a circumferential groove in said draw bar and a set screw threadably received in radially-extending hole in said body, said set screw having a conical point received in said circumferential groove.
7. The tool recited in claim 1 wherein a set screw is threadably received in said body adjacent the second end of said body clamping said draw bar laterally against one side of said body.
8. The tool recited in claim 7 wherein said set screw has a conical point threadably engaging a V-shaped groove in said draw bar.
9. The tool recited in claim 8 wherein a second set screw is received in a hole, disposed perpendicular to said first hole in said body clamping said draw bar laterally relative to said first mentioned set screw.
10. The tool recited in Claim 8 wherein said set screw is offset from the center of said groove in a direction away from said insert whereby said set screw point engages said groove on the side thereof remote from said insert.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA312,049A CA1070098A (en) | 1978-09-25 | 1978-09-25 | End mill tool holder body and tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA312,049A CA1070098A (en) | 1978-09-25 | 1978-09-25 | End mill tool holder body and tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1070098A true CA1070098A (en) | 1980-01-22 |
Family
ID=4112453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA312,049A Expired CA1070098A (en) | 1978-09-25 | 1978-09-25 | End mill tool holder body and tool |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1070098A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013018086A1 (en) | 2011-08-02 | 2013-02-07 | Iscar Ltd. | Cutting tool and clamping mechanism for holding a cutting insert thereto |
-
1978
- 1978-09-25 CA CA312,049A patent/CA1070098A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013018086A1 (en) | 2011-08-02 | 2013-02-07 | Iscar Ltd. | Cutting tool and clamping mechanism for holding a cutting insert thereto |
| US9089910B2 (en) | 2011-08-02 | 2015-07-28 | Iscar, Ltd. | Cutting tool and clamping mechanism for holding a cutting insert thereto |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DK167602B1 (en) | TOOL COLLECTION | |
| JP4065334B2 (en) | Tool joint for connecting two tool parts and connecting method | |
| EP1328366B1 (en) | Rotatable tool having a replaceable cutting part at the chip removing free end of the tool | |
| EP0642864B1 (en) | A cutting tool | |
| US20020015623A1 (en) | Rotatable tool having a replaceable tip at the chip removing free end of the tool | |
| WO2006028866A2 (en) | Toolholder and cutting insert for a toolholder assembly | |
| JPH0857774A (en) | Combination mold tool | |
| CA2138986C (en) | Drilling and chamfering tool | |
| CA1216442A (en) | Drill chuck for use in percussion drilling | |
| US4116579A (en) | End mill tool holder body and tool | |
| GB1591399A (en) | Cutting tool assembly | |
| WO2008051161A1 (en) | Cutting portion with a friction surface cooperating with a wrench | |
| US5341710A (en) | Coupling structure and method | |
| EP0117237B1 (en) | Cutting tool | |
| CA1070098A (en) | End mill tool holder body and tool | |
| US4880339A (en) | Drill bar with a cutter insert | |
| US4087194A (en) | Cutting tool | |
| JPH0321845Y2 (en) | ||
| US5967706A (en) | High speed milling cutter | |
| CA1104847A (en) | Rotary cutting tool and tool driver | |
| EP1311365B1 (en) | Cutting tool assembly | |
| EP0248775B1 (en) | Drill | |
| US20020159850A1 (en) | Countersinking tool for fast-exchange chucks | |
| EP0638385A1 (en) | Cutting tool | |
| JP2522035Y2 (en) | One-touch tool holder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |