JPS6220555Y2 - - Google Patents

Info

Publication number
JPS6220555Y2
JPS6220555Y2 JP1983123205U JP12320583U JPS6220555Y2 JP S6220555 Y2 JPS6220555 Y2 JP S6220555Y2 JP 1983123205 U JP1983123205 U JP 1983123205U JP 12320583 U JP12320583 U JP 12320583U JP S6220555 Y2 JPS6220555 Y2 JP S6220555Y2
Authority
JP
Japan
Prior art keywords
blade
buried pipe
ring
replaceable
blade ring
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
JP1983123205U
Other languages
English (en)
Japanese (ja)
Other versions
JPS6032492U (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 JP12320583U priority Critical patent/JPS6032492U/ja
Publication of JPS6032492U publication Critical patent/JPS6032492U/ja
Application granted granted Critical
Publication of JPS6220555Y2 publication Critical patent/JPS6220555Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)
  • Earth Drilling (AREA)
JP12320583U 1983-08-08 1983-08-08 地中埋設管の先端切削装置 Granted JPS6032492U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12320583U JPS6032492U (ja) 1983-08-08 1983-08-08 地中埋設管の先端切削装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12320583U JPS6032492U (ja) 1983-08-08 1983-08-08 地中埋設管の先端切削装置

Publications (2)

Publication Number Publication Date
JPS6032492U JPS6032492U (ja) 1985-03-05
JPS6220555Y2 true JPS6220555Y2 (enrdf_load_stackoverflow) 1987-05-25

Family

ID=30281334

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12320583U Granted JPS6032492U (ja) 1983-08-08 1983-08-08 地中埋設管の先端切削装置

Country Status (1)

Country Link
JP (1) JPS6032492U (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5399292B2 (ja) * 2010-02-23 2014-01-29 東日本旅客鉄道株式会社 エレメント推進工法、及びエレメント推進工法に用いられる刃口エレメント

Also Published As

Publication number Publication date
JPS6032492U (ja) 1985-03-05

Similar Documents

Publication Publication Date Title
US4625593A (en) Wood drill and method of construction
US6494275B2 (en) Rock drill bit having retrac teeth and method for its manufacturing
SE452636B (sv) Bergborrkrona
IE50845B1 (en) Drill tool
DE3464547D1 (en) Solid hard metal twist drill for machining materials difficult to machine
US4768901A (en) Drill having two or more cutting edges comprising exchangeable cutting members
JPH11291236A (ja) ドリル工具
US11421482B2 (en) Hole opener for directional drilling
AU631054B2 (en) Rock drill
US3687565A (en) Drill bit device
JPH02160505A (ja) 中空錐工具
JPH04229207A (ja) アンダカットを備えた穿設孔を製作する装置
US2221680A (en) Auger
CN102019635A (zh) 木工钻
KR101434244B1 (ko) 드릴 비트 및 단일 드릴 기구
JPS6220555Y2 (enrdf_load_stackoverflow)
US8286736B2 (en) Drill bit, a drill rod and a self drilling roof bolt
US2855994A (en) Milling apparatus
US20040065482A1 (en) Rock drill bit and method for the manufacture thereof
JPS6038796Y2 (ja) シ−ルド掘進機用カツタ−ビツト
CN116771291A (zh) 松软煤层让压护孔排渣组合钻具及其钻进方法
US2749102A (en) Auger drill head
KR20030038531A (ko) 분할가능한 드릴 및 그것의 절삭 인서트
US2792862A (en) Acoustical tile drill
US2602639A (en) Rock drill bit