JPH0340013U - - Google Patents

Info

Publication number
JPH0340013U
JPH0340013U JP10232989U JP10232989U JPH0340013U JP H0340013 U JPH0340013 U JP H0340013U JP 10232989 U JP10232989 U JP 10232989U JP 10232989 U JP10232989 U JP 10232989U JP H0340013 U JPH0340013 U JP H0340013U
Authority
JP
Japan
Prior art keywords
tip
cutting edge
edge
margin
outer peripheral
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
JP10232989U
Other languages
Japanese (ja)
Other versions
JP2523616Y2 (en
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 filed Critical
Priority to JP10232989U priority Critical patent/JP2523616Y2/en
Publication of JPH0340013U publication Critical patent/JPH0340013U/ja
Application granted granted Critical
Publication of JP2523616Y2 publication Critical patent/JP2523616Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Drilling Tools (AREA)

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は、本考案穴あけ工具の一実施例を示す
正面図、第２図は、その拡大側面図、第３図は、
変形例を示す拡大側面図、第４図は、同じく変形
例を拡大して示す一部側面図である。 １……穴あけ工具、２……シヤンク部分、３…
…工具本体、４……フルート溝、４ａ……すくい
面、５……先端切刃、８……ガイドパツト、１０
……切欠段部、１１……マージン、１２……外周
切刃、１３……先行する外周切刃、１４……チヤ
ンフア刃。 Fig. 1 is a front view showing an embodiment of the drilling tool of the present invention, Fig. 2 is an enlarged side view thereof, and Fig. 3 is a
FIG. 4 is a partially enlarged side view of the modified example. 1...Drilling tool, 2...Shank part, 3...
...Tool body, 4...Flute groove, 4a...Rake face, 5...Tip cutting edge, 8...Guide part, 10
... Notch step, 11 ... Margin, 12 ... Outer cutting edge, 13 ... Leading outer cutting edge, 14 ... Chamfer cutting edge.

Claims (1)

【実用新案登録請求の範囲】 軸方向に延びる１対のフルート溝４を形成した
工具本体３の先端部分には、先端角αを有する先
端切刃５が備えられるとともに、工具本体３の外
周部分には、外周切刃１２を有するマージン１１
およびガイドパツト８が備えられるようにした穴
あけ工具において、 前記マージン１１は、回転方向を基準にしてそ
のすくい面４ａ側の外周縁に沿つて先行する外周
切刃１３および先端側のチヤンフア刃１４が形成
されるように切欠段部１０を設け、しかも先行す
る外周切刃１３の半径方向すくい角θがθ＝１０
°〜２５°の範囲内で設定されるようにしたこと
を特徴とする穴あけ工具。[Claims for Utility Model Registration] The tip of the tool body 3 in which a pair of flute grooves 4 extending in the axial direction are formed is provided with a tip cutting edge 5 having a tip angle α, and the outer peripheral portion of the tool body 3 has a margin 11 having a peripheral cutting edge 12.
And in the drilling tool equipped with the guide pad 8, the margin 11 is formed by a leading peripheral cutting edge 13 and a chamfer blade 14 on the tip side along the outer peripheral edge on the rake face 4a side with respect to the rotation direction. The notch step portion 10 is provided so that the leading edge 13 has a radial rake angle θ=10.
A drilling tool characterized by being set within a range of ° to 25 °.
JP10232989U 1989-08-31 1989-08-31 Drilling tool Expired - Lifetime JP2523616Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10232989U JP2523616Y2 (en) 1989-08-31 1989-08-31 Drilling tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10232989U JP2523616Y2 (en) 1989-08-31 1989-08-31 Drilling tool

Publications (2)

Publication Number Publication Date
JPH0340013U true JPH0340013U (en) 1991-04-17
JP2523616Y2 JP2523616Y2 (en) 1997-01-29

Family

ID=31651230

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10232989U Expired - Lifetime JP2523616Y2 (en) 1989-08-31 1989-08-31 Drilling tool

Country Status (1)

Country Link
JP (1) JP2523616Y2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002178211A (en) * 2000-12-14 2002-06-25 Osg Corp Ultra-high pressure cbn sintered body end mill
JP2010253616A (en) * 2009-04-24 2010-11-11 Tungaloy Corp Drilling tool
EP2441543A1 (en) * 2009-06-11 2012-04-18 Tungaloy Corporation Drilling tool

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002178211A (en) * 2000-12-14 2002-06-25 Osg Corp Ultra-high pressure cbn sintered body end mill
JP2010253616A (en) * 2009-04-24 2010-11-11 Tungaloy Corp Drilling tool
EP2441543A1 (en) * 2009-06-11 2012-04-18 Tungaloy Corporation Drilling tool
EP2441543A4 (en) * 2009-06-11 2017-04-05 Tungaloy Corporation Drilling tool

Also Published As

Publication number Publication date
JP2523616Y2 (en) 1997-01-29

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term