JPS607440Y2 - ピツト - Google Patents

ピツト

Info

Publication number
JPS607440Y2
JPS607440Y2 JP1976006844U JP684476U JPS607440Y2 JP S607440 Y2 JPS607440 Y2 JP S607440Y2 JP 1976006844 U JP1976006844 U JP 1976006844U JP 684476 U JP684476 U JP 684476U JP S607440 Y2 JPS607440 Y2 JP S607440Y2
Authority
JP
Japan
Prior art keywords
tip
spherical curvature
bit
outer periphery
protrusion length
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
JP1976006844U
Other languages
English (en)
Japanese (ja)
Other versions
JPS52100001U (US07534539-20090519-C00280.png
Inventor
元美 沢田
Original Assignee
三菱マテリアル株式会社
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 三菱マテリアル株式会社 filed Critical 三菱マテリアル株式会社
Priority to JP1976006844U priority Critical patent/JPS607440Y2/ja
Publication of JPS52100001U publication Critical patent/JPS52100001U/ja
Application granted granted Critical
Publication of JPS607440Y2 publication Critical patent/JPS607440Y2/ja
Expired legal-status Critical Current

Links

JP1976006844U 1976-01-24 1976-01-24 ピツト Expired JPS607440Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1976006844U JPS607440Y2 (ja) 1976-01-24 1976-01-24 ピツト

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1976006844U JPS607440Y2 (ja) 1976-01-24 1976-01-24 ピツト

Publications (2)

Publication Number Publication Date
JPS52100001U JPS52100001U (US07534539-20090519-C00280.png) 1977-07-28
JPS607440Y2 true JPS607440Y2 (ja) 1985-03-12

Family

ID=28467400

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1976006844U Expired JPS607440Y2 (ja) 1976-01-24 1976-01-24 ピツト

Country Status (1)

Country Link
JP (1) JPS607440Y2 (US07534539-20090519-C00280.png)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014196616A (ja) * 2013-03-29 2014-10-16 三菱マテリアル株式会社 掘削ビット

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS477361U (US07534539-20090519-C00280.png) * 1971-02-20 1972-09-27

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS477361U (US07534539-20090519-C00280.png) * 1971-02-20 1972-09-27

Also Published As

Publication number Publication date
JPS52100001U (US07534539-20090519-C00280.png) 1977-07-28

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