JPH0428954U - - Google Patents

Info

Publication number
JPH0428954U
JPH0428954U JP6770890U JP6770890U JPH0428954U JP H0428954 U JPH0428954 U JP H0428954U JP 6770890 U JP6770890 U JP 6770890U JP 6770890 U JP6770890 U JP 6770890U JP H0428954 U JPH0428954 U JP H0428954U
Authority
JP
Japan
Prior art keywords
grindstone
core drill
tip
peripheral surface
axial direction
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
JP6770890U
Other languages
English (en)
Japanese (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 JP6770890U priority Critical patent/JPH0428954U/ja
Publication of JPH0428954U publication Critical patent/JPH0428954U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Drilling Tools (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
JP6770890U 1990-06-26 1990-06-26 Pending JPH0428954U (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6770890U JPH0428954U (fr) 1990-06-26 1990-06-26

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6770890U JPH0428954U (fr) 1990-06-26 1990-06-26

Publications (1)

Publication Number Publication Date
JPH0428954U true JPH0428954U (fr) 1992-03-09

Family

ID=31601521

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6770890U Pending JPH0428954U (fr) 1990-06-26 1990-06-26

Country Status (1)

Country Link
JP (1) JPH0428954U (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010247378A (ja) * 2009-04-13 2010-11-04 Consec Corp コアビット
JP2013067023A (ja) * 2011-09-20 2013-04-18 Goei Seisakusho:Kk 穿孔工具

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0219421B2 (fr) * 1985-06-20 1990-05-01 Nippon Electron Optics Lab

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0219421B2 (fr) * 1985-06-20 1990-05-01 Nippon Electron Optics Lab

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010247378A (ja) * 2009-04-13 2010-11-04 Consec Corp コアビット
JP2013067023A (ja) * 2011-09-20 2013-04-18 Goei Seisakusho:Kk 穿孔工具

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