JPH0242792Y2 - - Google Patents

Info

Publication number
JPH0242792Y2
JPH0242792Y2 JP1985046938U JP4693885U JPH0242792Y2 JP H0242792 Y2 JPH0242792 Y2 JP H0242792Y2 JP 1985046938 U JP1985046938 U JP 1985046938U JP 4693885 U JP4693885 U JP 4693885U JP H0242792 Y2 JPH0242792 Y2 JP H0242792Y2
Authority
JP
Japan
Prior art keywords
bit
bit body
pilot part
diameter
pilot
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
JP1985046938U
Other languages
English (en)
Japanese (ja)
Other versions
JPS61164387U (en]
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 JP1985046938U priority Critical patent/JPH0242792Y2/ja
Publication of JPS61164387U publication Critical patent/JPS61164387U/ja
Application granted granted Critical
Publication of JPH0242792Y2 publication Critical patent/JPH0242792Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP1985046938U 1985-03-30 1985-03-30 Expired JPH0242792Y2 (en])

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1985046938U JPH0242792Y2 (en]) 1985-03-30 1985-03-30

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1985046938U JPH0242792Y2 (en]) 1985-03-30 1985-03-30

Publications (2)

Publication Number Publication Date
JPS61164387U JPS61164387U (en]) 1986-10-11
JPH0242792Y2 true JPH0242792Y2 (en]) 1990-11-14

Family

ID=30561801

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1985046938U Expired JPH0242792Y2 (en]) 1985-03-30 1985-03-30

Country Status (1)

Country Link
JP (1) JPH0242792Y2 (en])

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009019463A (ja) * 2007-07-13 2009-01-29 Okumura Corp ガイドロッド付き穿孔装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58151407A (ja) * 1982-03-03 1983-09-08 Kawasaki Steel Corp 高炉出銑口座ぐり用ビツト

Also Published As

Publication number Publication date
JPS61164387U (en]) 1986-10-11

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