JPS64167B2 - - Google Patents

Info

Publication number
JPS64167B2
JPS64167B2 JP22867486A JP22867486A JPS64167B2 JP S64167 B2 JPS64167 B2 JP S64167B2 JP 22867486 A JP22867486 A JP 22867486A JP 22867486 A JP22867486 A JP 22867486A JP S64167 B2 JPS64167 B2 JP S64167B2
Authority
JP
Japan
Prior art keywords
drill
blade
core thickness
sectional
groove
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
JP22867486A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6268213A (ja
Inventor
Kohei Matsumoto
Yoshio Nakahara
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel Ltd
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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP22867486A priority Critical patent/JPS6268213A/ja
Publication of JPS6268213A publication Critical patent/JPS6268213A/ja
Publication of JPS64167B2 publication Critical patent/JPS64167B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Drilling Tools (AREA)
JP22867486A 1986-09-26 1986-09-26 ドリル Granted JPS6268213A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22867486A JPS6268213A (ja) 1986-09-26 1986-09-26 ドリル

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22867486A JPS6268213A (ja) 1986-09-26 1986-09-26 ドリル

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP22867586A Division JPS6384807A (ja) 1986-09-26 1986-09-26 ドリル

Publications (2)

Publication Number Publication Date
JPS6268213A JPS6268213A (ja) 1987-03-28
JPS64167B2 true JPS64167B2 (en, 2012) 1989-01-05

Family

ID=16880035

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22867486A Granted JPS6268213A (ja) 1986-09-26 1986-09-26 ドリル

Country Status (1)

Country Link
JP (1) JPS6268213A (en, 2012)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101495260B (zh) 2006-10-23 2012-06-13 Osg株式会社 钻头
DE102010006796B4 (de) 2010-02-04 2011-12-08 Kennametal Inc. Verfahren zur Herstellung eines Bohrers, sowie Bohrer
DE102010006797B4 (de) * 2010-02-04 2011-12-22 Kennametal Inc. Bohrwerkzeug
US20220266352A1 (en) * 2019-07-08 2022-08-25 Mitsubishi Materials Corporation Drill

Also Published As

Publication number Publication date
JPS6268213A (ja) 1987-03-28

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees