JPS6235746Y2 - - Google Patents

Info

Publication number
JPS6235746Y2
JPS6235746Y2 JP7289682U JP7289682U JPS6235746Y2 JP S6235746 Y2 JPS6235746 Y2 JP S6235746Y2 JP 7289682 U JP7289682 U JP 7289682U JP 7289682 U JP7289682 U JP 7289682U JP S6235746 Y2 JPS6235746 Y2 JP S6235746Y2
Authority
JP
Japan
Prior art keywords
circumferential groove
base metal
drill bit
groove
auxiliary discharge
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
JP7289682U
Other languages
English (en)
Japanese (ja)
Other versions
JPS58176189U (ja
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 filed Critical
Priority to JP7289682U priority Critical patent/JPS58176189U/ja
Publication of JPS58176189U publication Critical patent/JPS58176189U/ja
Application granted granted Critical
Publication of JPS6235746Y2 publication Critical patent/JPS6235746Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP7289682U 1982-05-17 1982-05-17 衝撃式ドリル用ビツト Granted JPS58176189U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7289682U JPS58176189U (ja) 1982-05-17 1982-05-17 衝撃式ドリル用ビツト

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7289682U JPS58176189U (ja) 1982-05-17 1982-05-17 衝撃式ドリル用ビツト

Publications (2)

Publication Number Publication Date
JPS58176189U JPS58176189U (ja) 1983-11-25
JPS6235746Y2 true JPS6235746Y2 (enrdf_load_stackoverflow) 1987-09-10

Family

ID=30082434

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7289682U Granted JPS58176189U (ja) 1982-05-17 1982-05-17 衝撃式ドリル用ビツト

Country Status (1)

Country Link
JP (1) JPS58176189U (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100312094B1 (ko) * 1999-04-17 2001-11-03 김동남 굴착기 비트

Also Published As

Publication number Publication date
JPS58176189U (ja) 1983-11-25

Similar Documents

Publication Publication Date Title
US5553682A (en) Rock drill
US7392863B2 (en) Rock drill bit
US20050199429A1 (en) Transmission sleeve
JPS60152330A (ja) 中空カムシヤフトの製造方法
KR20050008786A (ko) 충격식 착암용 수형부, 드릴 비트 및 나사 조인트
CA1255652A (en) Drill steel
EP0048282A1 (en) Nib for bolt head or nut forming tool
JPS6235746Y2 (enrdf_load_stackoverflow)
AU3668293A (en) Reversible bit bearing for percussion drill
CN102597472B (zh) 具有漏气特性的活塞及防止内燃机严重故障的方法
KR20040077961A (ko) 암반 드릴링용 드릴부재 및 드릴부재의 제작 방법
US3613807A (en) Drill rod with dust-collecting means
AU608441B2 (en) Down the hole hammer equipment
US4823893A (en) Metal insert mounting
JPS63502196A (ja) ドリル工具
CN209339863U (zh) 新型锁定组件
US4017951A (en) Method for manufacturing ball bearings having a sintered metal powder outer race
JPS6315420Y2 (enrdf_load_stackoverflow)
US12392202B2 (en) Down-the-hole drill hammer having a ribbed exhaust tube
TWM646707U (zh) 氣動鑽孔機
CA1160214A (en) Shank adaptor for rock-drilling machines
SU1042848A1 (ru) Способ креплени трубы в отверстии трубной решетки
CN204308266U (zh) 一种开孔器
KR200188756Y1 (ko) 암반균열장치
JPS6323508Y2 (enrdf_load_stackoverflow)