JPS53135087A - Drilling method by drill - Google Patents

Drilling method by drill

Info

Publication number
JPS53135087A
JPS53135087A JP4850777A JP4850777A JPS53135087A JP S53135087 A JPS53135087 A JP S53135087A JP 4850777 A JP4850777 A JP 4850777A JP 4850777 A JP4850777 A JP 4850777A JP S53135087 A JPS53135087 A JP S53135087A
Authority
JP
Japan
Prior art keywords
drill
drilling method
drilling
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
JP4850777A
Other languages
Japanese (ja)
Inventor
Tomozou Kawakita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hokushin Industries Corp
Tungaloy Corp
Original Assignee
Hokushin Industries Corp
Toshiba Tungaloy Co Ltd
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 by Hokushin Industries Corp, Toshiba Tungaloy Co Ltd filed Critical Hokushin Industries Corp
Priority to JP4850777A priority Critical patent/JPS53135087A/en
Publication of JPS53135087A publication Critical patent/JPS53135087A/en
Pending legal-status Critical Current

Links

Landscapes

  • Drilling And Boring (AREA)
JP4850777A 1977-04-28 1977-04-28 Drilling method by drill Pending JPS53135087A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4850777A JPS53135087A (en) 1977-04-28 1977-04-28 Drilling method by drill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4850777A JPS53135087A (en) 1977-04-28 1977-04-28 Drilling method by drill

Publications (1)

Publication Number Publication Date
JPS53135087A true JPS53135087A (en) 1978-11-25

Family

ID=12805279

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4850777A Pending JPS53135087A (en) 1977-04-28 1977-04-28 Drilling method by drill

Country Status (1)

Country Link
JP (1) JPS53135087A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011230270A (en) * 2010-04-30 2011-11-17 Hitachi Via Mechanics Ltd Printed circuit board working machine
JP2019181638A (en) * 2018-04-13 2019-10-24 神谷機工株式会社 Cutter with scratch prevention function

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011230270A (en) * 2010-04-30 2011-11-17 Hitachi Via Mechanics Ltd Printed circuit board working machine
JP2019181638A (en) * 2018-04-13 2019-10-24 神谷機工株式会社 Cutter with scratch prevention function

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