JPS61144905U - - Google Patents

Info

Publication number
JPS61144905U
JPS61144905U JP2553385U JP2553385U JPS61144905U JP S61144905 U JPS61144905 U JP S61144905U JP 2553385 U JP2553385 U JP 2553385U JP 2553385 U JP2553385 U JP 2553385U JP S61144905 U JPS61144905 U JP S61144905U
Authority
JP
Japan
Prior art keywords
groove
drill structure
tip
helix angle
angle
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
JP2553385U
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 JP2553385U priority Critical patent/JPS61144905U/ja
Publication of JPS61144905U publication Critical patent/JPS61144905U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Drilling Tools (AREA)
JP2553385U 1985-02-26 1985-02-26 Pending JPS61144905U (US06368395-20020409-C00050.png)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2553385U JPS61144905U (US06368395-20020409-C00050.png) 1985-02-26 1985-02-26

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2553385U JPS61144905U (US06368395-20020409-C00050.png) 1985-02-26 1985-02-26

Publications (1)

Publication Number Publication Date
JPS61144905U true JPS61144905U (US06368395-20020409-C00050.png) 1986-09-06

Family

ID=30520686

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2553385U Pending JPS61144905U (US06368395-20020409-C00050.png) 1985-02-26 1985-02-26

Country Status (1)

Country Link
JP (1) JPS61144905U (US06368395-20020409-C00050.png)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6442815U (US06368395-20020409-C00050.png) * 1987-09-05 1989-03-14
JPH03142117A (ja) * 1989-10-27 1991-06-17 Mitsubishi Materials Corp 穴明け工具

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6442815U (US06368395-20020409-C00050.png) * 1987-09-05 1989-03-14
JPH03142117A (ja) * 1989-10-27 1991-06-17 Mitsubishi Materials Corp 穴明け工具

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