JPH0369646B2 - - Google Patents

Info

Publication number
JPH0369646B2
JPH0369646B2 JP61228675A JP22867586A JPH0369646B2 JP H0369646 B2 JPH0369646 B2 JP H0369646B2 JP 61228675 A JP61228675 A JP 61228675A JP 22867586 A JP22867586 A JP 22867586A JP H0369646 B2 JPH0369646 B2 JP H0369646B2
Authority
JP
Japan
Prior art keywords
drill
groove
cross
heel
blade
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 - Lifetime
Application number
JP61228675A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6384807A (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 JP22867586A priority Critical patent/JPS6384807A/ja
Publication of JPS6384807A publication Critical patent/JPS6384807A/ja
Publication of JPH0369646B2 publication Critical patent/JPH0369646B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Drilling Tools (AREA)
JP22867586A 1986-09-26 1986-09-26 ドリル Granted JPS6384807A (ja)

Priority Applications (1)

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

Applications Claiming Priority (1)

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

Related Parent Applications (1)

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

Publications (2)

Publication Number Publication Date
JPS6384807A JPS6384807A (ja) 1988-04-15
JPH0369646B2 true JPH0369646B2 (enrdf_load_html_response) 1991-11-01

Family

ID=16880050

Family Applications (1)

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

Country Status (1)

Country Link
JP (1) JPS6384807A (enrdf_load_html_response)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6025608A (ja) * 1983-07-19 1985-02-08 Masao Kubota ツイストドリル

Also Published As

Publication number Publication date
JPS6384807A (ja) 1988-04-15

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term