JPS625724B2 - - Google Patents

Info

Publication number
JPS625724B2
JPS625724B2 JP18236182A JP18236182A JPS625724B2 JP S625724 B2 JPS625724 B2 JP S625724B2 JP 18236182 A JP18236182 A JP 18236182A JP 18236182 A JP18236182 A JP 18236182A JP S625724 B2 JPS625724 B2 JP S625724B2
Authority
JP
Japan
Prior art keywords
drill
cutting
rotation
center
tool body
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.)
Expired
Application number
JP18236182A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58177215A (ja
Inventor
Hideo Negishi
Kaoru Goto
Sueji Takatani
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.)
Mitsubishi Metal Corp
Original Assignee
Mitsubishi Metal Corp
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 Mitsubishi Metal Corp filed Critical Mitsubishi Metal Corp
Priority to JP18236182A priority Critical patent/JPS58177215A/ja
Publication of JPS58177215A publication Critical patent/JPS58177215A/ja
Publication of JPS625724B2 publication Critical patent/JPS625724B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/02—Twist drills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/18—Configuration of the drill point
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/46—Drills having a centre free from cutting edges or with recessed cutting edges

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling Tools (AREA)
JP18236182A 1982-10-18 1982-10-18 穴明け工具 Granted JPS58177215A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18236182A JPS58177215A (ja) 1982-10-18 1982-10-18 穴明け工具

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18236182A JPS58177215A (ja) 1982-10-18 1982-10-18 穴明け工具

Publications (2)

Publication Number Publication Date
JPS58177215A JPS58177215A (ja) 1983-10-17
JPS625724B2 true JPS625724B2 (fr) 1987-02-06

Family

ID=16116966

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18236182A Granted JPS58177215A (ja) 1982-10-18 1982-10-18 穴明け工具

Country Status (1)

Country Link
JP (1) JPS58177215A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62121012U (fr) * 1986-01-20 1987-07-31

Also Published As

Publication number Publication date
JPS58177215A (ja) 1983-10-17

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