JPS5590214A - Drill - Google Patents

Drill

Info

Publication number
JPS5590214A
JPS5590214A JP16195578A JP16195578A JPS5590214A JP S5590214 A JPS5590214 A JP S5590214A JP 16195578 A JP16195578 A JP 16195578A JP 16195578 A JP16195578 A JP 16195578A JP S5590214 A JPS5590214 A JP S5590214A
Authority
JP
Japan
Prior art keywords
shank
wall
work hole
cutting edge
choke
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.)
Granted
Application number
JP16195578A
Other languages
Japanese (ja)
Other versions
JPS6341694B2 (en
Inventor
Toshiaki Hosoi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP16195578A priority Critical patent/JPS5590214A/en
Publication of JPS5590214A publication Critical patent/JPS5590214A/en
Publication of JPS6341694B2 publication Critical patent/JPS6341694B2/ja
Granted legal-status Critical Current

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Landscapes

  • Drilling Tools (AREA)

Abstract

PURPOSE: To keep peripheral surfaces of the shank not contacted to an inner wall of the work hole while preventing a choke of cutting chips, and reduce a rotational resistance, further enhance finish precision of the work hole, by making outside diameter of the shank a certain range smaller than that of the point end cutting edge.
CONSTITUTION: In a shank 1 of the drill, are constructed a pair of tips 2, having a cutting edge 6, and a helical groove 3. Outside diameter of the cutting edge 6 is constructed bigger than that of the shank 1, and between an inner wall 5 of the work hole and a peripheral surface 4 of the shank, is made a clearance t. This clearance t, being made to a range of 0.02W0.15mm, can eliminate contact of the peripheral surface 4 to the inner wall 5, and cause no choke of cutting chips, thus can be obtained an inner wall of the work hole with a good finish.
COPYRIGHT: (C)1980,JPO&Japio
JP16195578A 1978-12-27 1978-12-27 Drill Granted JPS5590214A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16195578A JPS5590214A (en) 1978-12-27 1978-12-27 Drill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16195578A JPS5590214A (en) 1978-12-27 1978-12-27 Drill

Publications (2)

Publication Number Publication Date
JPS5590214A true JPS5590214A (en) 1980-07-08
JPS6341694B2 JPS6341694B2 (en) 1988-08-18

Family

ID=15745226

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16195578A Granted JPS5590214A (en) 1978-12-27 1978-12-27 Drill

Country Status (1)

Country Link
JP (1) JPS5590214A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS597509A (en) * 1982-07-02 1984-01-14 Toshiaki Hosoi Drill
US5387059A (en) * 1993-08-24 1995-02-07 Borzemsky; George E. Drill bit with improved stability
US5967712A (en) * 1998-11-03 1999-10-19 Kennametal Inc. Cutting tool for machining bores in materials having spring-back

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0211990A (en) * 1988-06-29 1990-01-17 Nitta Mua Co:Kk Plastic tube fitting and manufacture thereof
JPH0454389U (en) * 1990-09-17 1992-05-11

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5311389A (en) * 1976-07-19 1978-02-01 Fuji Seiki Machine Works Tools for cutting hard cutting materials

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5311389A (en) * 1976-07-19 1978-02-01 Fuji Seiki Machine Works Tools for cutting hard cutting materials

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS597509A (en) * 1982-07-02 1984-01-14 Toshiaki Hosoi Drill
JPS6216765B2 (en) * 1982-07-02 1987-04-14 Toshiaki Hosoi
US5387059A (en) * 1993-08-24 1995-02-07 Borzemsky; George E. Drill bit with improved stability
US5967712A (en) * 1998-11-03 1999-10-19 Kennametal Inc. Cutting tool for machining bores in materials having spring-back

Also Published As

Publication number Publication date
JPS6341694B2 (en) 1988-08-18

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Legal Events

Date Code Title Description
A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 19870526