JPH0428909U - - Google Patents

Info

Publication number
JPH0428909U
JPH0428909U JP6703690U JP6703690U JPH0428909U JP H0428909 U JPH0428909 U JP H0428909U JP 6703690 U JP6703690 U JP 6703690U JP 6703690 U JP6703690 U JP 6703690U JP H0428909 U JPH0428909 U JP H0428909U
Authority
JP
Japan
Prior art keywords
coating layer
center drill
groove
tapered
straight
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
JP6703690U
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 JP6703690U priority Critical patent/JPH0428909U/ja
Publication of JPH0428909U publication Critical patent/JPH0428909U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Drilling Tools (AREA)
JP6703690U 1990-06-25 1990-06-25 Pending JPH0428909U (enrdf_load_stackoverflow)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6703690U JPH0428909U (enrdf_load_stackoverflow) 1990-06-25 1990-06-25

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6703690U JPH0428909U (enrdf_load_stackoverflow) 1990-06-25 1990-06-25

Publications (1)

Publication Number Publication Date
JPH0428909U true JPH0428909U (enrdf_load_stackoverflow) 1992-03-09

Family

ID=31600261

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6703690U Pending JPH0428909U (enrdf_load_stackoverflow) 1990-06-25 1990-06-25

Country Status (1)

Country Link
JP (1) JPH0428909U (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009202302A (ja) * 2008-02-28 2009-09-10 Yamawa Seisakusho:Kk センタ穴ドリル

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009202302A (ja) * 2008-02-28 2009-09-10 Yamawa Seisakusho:Kk センタ穴ドリル

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