JPS53110189A - Center hole cutter - Google Patents

Center hole cutter

Info

Publication number
JPS53110189A
JPS53110189A JP2490577A JP2490577A JPS53110189A JP S53110189 A JPS53110189 A JP S53110189A JP 2490577 A JP2490577 A JP 2490577A JP 2490577 A JP2490577 A JP 2490577A JP S53110189 A JPS53110189 A JP S53110189A
Authority
JP
Japan
Prior art keywords
center hole
hole cutter
center
pushcup
chuck
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
JP2490577A
Other languages
Japanese (ja)
Inventor
Nobuyoshi Kawashima
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP2490577A priority Critical patent/JPS53110189A/en
Publication of JPS53110189A publication Critical patent/JPS53110189A/en
Pending legal-status Critical Current

Links

Landscapes

  • Drilling And Boring (AREA)

Abstract

PURPOSE: To cut center holes efficiently by means of the combination of a holder to be additionally provided on a chuck and a center drill which advances together with a pushcup.
COPYRIGHT: (C)1978,JPO&Japio
JP2490577A 1977-03-09 1977-03-09 Center hole cutter Pending JPS53110189A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2490577A JPS53110189A (en) 1977-03-09 1977-03-09 Center hole cutter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2490577A JPS53110189A (en) 1977-03-09 1977-03-09 Center hole cutter

Publications (1)

Publication Number Publication Date
JPS53110189A true JPS53110189A (en) 1978-09-26

Family

ID=12151182

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2490577A Pending JPS53110189A (en) 1977-03-09 1977-03-09 Center hole cutter

Country Status (1)

Country Link
JP (1) JPS53110189A (en)

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