JPS563790A - Rock bit - Google Patents

Rock bit

Info

Publication number
JPS563790A
JPS563790A JP7707079A JP7707079A JPS563790A JP S563790 A JPS563790 A JP S563790A JP 7707079 A JP7707079 A JP 7707079A JP 7707079 A JP7707079 A JP 7707079A JP S563790 A JPS563790 A JP S563790A
Authority
JP
Japan
Prior art keywords
rock bit
rock
bit
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.)
Pending
Application number
JP7707079A
Other languages
Japanese (ja)
Inventor
Fumitaka Kaya
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.)
Toho Kinzoku Co Ltd
Original Assignee
Toho Kinzoku Co 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 Toho Kinzoku Co Ltd filed Critical Toho Kinzoku Co Ltd
Priority to JP7707079A priority Critical patent/JPS563790A/en
Publication of JPS563790A publication Critical patent/JPS563790A/en
Pending legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP7707079A 1979-06-19 1979-06-19 Rock bit Pending JPS563790A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7707079A JPS563790A (en) 1979-06-19 1979-06-19 Rock bit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7707079A JPS563790A (en) 1979-06-19 1979-06-19 Rock bit

Publications (1)

Publication Number Publication Date
JPS563790A true JPS563790A (en) 1981-01-16

Family

ID=13623526

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7707079A Pending JPS563790A (en) 1979-06-19 1979-06-19 Rock bit

Country Status (1)

Country Link
JP (1) JPS563790A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59134609A (en) * 1982-09-24 1984-08-02 デ・ビア−ズ・インダストリアル・ダイアモンドデイビジヨン（プロプライエタリイ）リミテツド Tool constitutional element
JP2013506780A (en) * 2009-10-05 2013-02-28 アトラス コプコ セコロック アクチボラゲット Hard metal insert of impact drill bit and method of polishing hard metal insert

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59134609A (en) * 1982-09-24 1984-08-02 デ・ビア−ズ・インダストリアル・ダイアモンドデイビジヨン（プロプライエタリイ）リミテツド Tool constitutional element
JPH0253597B2 (en) * 1982-09-24 1990-11-19 De Biazu Ind Daiamondo Deibijon Ltd
JP2013506780A (en) * 2009-10-05 2013-02-28 アトラス コプコ セコロック アクチボラゲット Hard metal insert of impact drill bit and method of polishing hard metal insert

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