JPS6147645B2 - - Google Patents

Info

Publication number
JPS6147645B2
JPS6147645B2 JP9600580A JP9600580A JPS6147645B2 JP S6147645 B2 JPS6147645 B2 JP S6147645B2 JP 9600580 A JP9600580 A JP 9600580A JP 9600580 A JP9600580 A JP 9600580A JP S6147645 B2 JPS6147645 B2 JP S6147645B2
Authority
JP
Japan
Prior art keywords
drill
center
round hole
cutting edge
cutting
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
Application number
JP9600580A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5721213A (en
Inventor
Hideo Negishi
Kaoru Goto
Sueji Takatani
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.)
Mitsubishi Metal Corp
Original Assignee
Mitsubishi Metal Corp
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 Mitsubishi Metal Corp filed Critical Mitsubishi Metal Corp
Priority to JP9600580A priority Critical patent/JPS5721213A/ja
Publication of JPS5721213A publication Critical patent/JPS5721213A/ja
Publication of JPS6147645B2 publication Critical patent/JPS6147645B2/ja
Granted legal-status Critical Current

Links

JP9600580A 1980-07-14 1980-07-14 Drill Granted JPS5721213A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9600580A JPS5721213A (en) 1980-07-14 1980-07-14 Drill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9600580A JPS5721213A (en) 1980-07-14 1980-07-14 Drill

Publications (2)

Publication Number Publication Date
JPS5721213A JPS5721213A (en) 1982-02-03
JPS6147645B2 true JPS6147645B2 (ru) 1986-10-20

Family

ID=14153015

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9600580A Granted JPS5721213A (en) 1980-07-14 1980-07-14 Drill

Country Status (1)

Country Link
JP (1) JPS5721213A (ru)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102212841B1 (ko) 2019-12-24 2021-02-05 가부시키가이샤 스즈키 반도체 장치의 제조 방법 및 반도체 장치의 제조 장치

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0248174Y2 (ru) * 1985-07-05 1990-12-18
ATE72157T1 (de) * 1986-06-07 1992-02-15 Hertel Ag Verfahren zum anschleifen eines spiralbohrers.
JP3739048B2 (ja) 2002-11-01 2006-01-25 株式会社ミヤナガ ドリルビット

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102212841B1 (ko) 2019-12-24 2021-02-05 가부시키가이샤 스즈키 반도체 장치의 제조 방법 및 반도체 장치의 제조 장치

Also Published As

Publication number Publication date
JPS5721213A (en) 1982-02-03

Similar Documents

Publication Publication Date Title
US4802799A (en) Drill bit
EP1694458B1 (en) Twist drill
US5486075A (en) Boring tool
US4728231A (en) Drill bit structure
US5387059A (en) Drill bit with improved stability
US5322394A (en) Highly stiff end mill
WO2003024650A1 (en) Cutting point for a drill
JP2001054812A (ja) エンドミルカッター
EP3444059A1 (en) Small-diameter drill bit
JPH08155713A (ja) ツイストドリル
JPS625726B2 (ru)
JPS6234711A (ja) ドリル
WO2021066046A1 (ja) 回転切削工具
US5174691A (en) High feed rate deep penetration drill
JPS6147645B2 (ru)
JPS6125941Y2 (ru)
JPS63102814A (ja) 二枚刃ガンドリル
JP2516412B2 (ja) 油穴付きストレ―トドリル
JPH069813U (ja) ドリル
JP2623304B2 (ja) サーメット製ツイストドリル
JPH0532164B2 (ru)
JP3036343B2 (ja) エンドミル
JP2535644Y2 (ja) ドリル
JPH023377Y2 (ru)
JP3215497B2 (ja) ドリル