JPH0129646B2 - - Google Patents

Info

Publication number
JPH0129646B2
JPH0129646B2 JP2918584A JP2918584A JPH0129646B2 JP H0129646 B2 JPH0129646 B2 JP H0129646B2 JP 2918584 A JP2918584 A JP 2918584A JP 2918584 A JP2918584 A JP 2918584A JP H0129646 B2 JPH0129646 B2 JP H0129646B2
Authority
JP
Japan
Prior art keywords
blade
mounting body
rotation control
hollow mounting
cutting
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
JP2918584A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60172408A (ja
Inventor
Masaaki Myanaga
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.)
Myanaga KK
Original Assignee
Myanaga KK
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 Myanaga KK filed Critical Myanaga KK
Priority to JP2918584A priority Critical patent/JPS60172408A/ja
Publication of JPS60172408A publication Critical patent/JPS60172408A/ja
Publication of JPH0129646B2 publication Critical patent/JPH0129646B2/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
    • B23B51/0018—Drills for enlarging a hole

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling And Boring (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
JP2918584A 1984-02-17 1984-02-17 アンダ−カツト穿孔用打撃穿孔装置 Granted JPS60172408A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2918584A JPS60172408A (ja) 1984-02-17 1984-02-17 アンダ−カツト穿孔用打撃穿孔装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2918584A JPS60172408A (ja) 1984-02-17 1984-02-17 アンダ−カツト穿孔用打撃穿孔装置

Publications (2)

Publication Number Publication Date
JPS60172408A JPS60172408A (ja) 1985-09-05
JPH0129646B2 true JPH0129646B2 (pl) 1989-06-13

Family

ID=12269146

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2918584A Granted JPS60172408A (ja) 1984-02-17 1984-02-17 アンダ−カツト穿孔用打撃穿孔装置

Country Status (1)

Country Link
JP (1) JPS60172408A (pl)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5735650A (en) * 1995-02-28 1998-04-07 Kabushiki Kaisha Miyanaga Drill bit for drilling an undercut hole

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5735650A (en) * 1995-02-28 1998-04-07 Kabushiki Kaisha Miyanaga Drill bit for drilling an undercut hole

Also Published As

Publication number Publication date
JPS60172408A (ja) 1985-09-05

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term