JPS5715606A - Drill - Google Patents

Drill

Info

Publication number
JPS5715606A
JPS5715606A JP8620380A JP8620380A JPS5715606A JP S5715606 A JPS5715606 A JP S5715606A JP 8620380 A JP8620380 A JP 8620380A JP 8620380 A JP8620380 A JP 8620380A JP S5715606 A JPS5715606 A JP S5715606A
Authority
JP
Japan
Prior art keywords
drill
grooves
cutting edges
point end
jetting ports
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.)
Granted
Application number
JP8620380A
Other languages
Japanese (ja)
Other versions
JPS6319285B2 (en
Inventor
Yukimasa Hirose
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.)
NISSHIN KURIINAA KOGYO KK
NITSUSHIN KURIINAA KOGYO KK
Original Assignee
NISSHIN KURIINAA KOGYO KK
NITSUSHIN KURIINAA KOGYO 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 NISSHIN KURIINAA KOGYO KK, NITSUSHIN KURIINAA KOGYO KK filed Critical NISSHIN KURIINAA KOGYO KK
Priority to JP8620380A priority Critical patent/JPS5715606A/en
Publication of JPS5715606A publication Critical patent/JPS5715606A/en
Publication of JPS6319285B2 publication Critical patent/JPS6319285B2/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/14—Configuration of the cutting part, i.e. the main cutting edges

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling Tools (AREA)

Abstract

PURPOSE:To increase drilling speed of a drill, by notching the point end part of the drill for a pipe cleaner. CONSTITUTION:Striaght shaped cutting edges (a) are formed in the peripheral part of a drill main body 1 welded to a shank 3, and grooves 2 are formed in the point end so as to obtain an angle theta of 60 deg.-70 deg., then sharpened ends 6 are formed by intersecting points of the cutting edges (a) and the grooves 2. Pressure water is fed to a through hole 4 communicated to jetting ports 5, and the water is injected from the jetting ports 5 when scale in a machine pipe is cut and removed. The cutting edge (a) may be spirally shaped.
JP8620380A 1980-06-25 1980-06-25 Drill Granted JPS5715606A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8620380A JPS5715606A (en) 1980-06-25 1980-06-25 Drill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8620380A JPS5715606A (en) 1980-06-25 1980-06-25 Drill

Publications (2)

Publication Number Publication Date
JPS5715606A true JPS5715606A (en) 1982-01-27
JPS6319285B2 JPS6319285B2 (en) 1988-04-22

Family

ID=13880214

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8620380A Granted JPS5715606A (en) 1980-06-25 1980-06-25 Drill

Country Status (1)

Country Link
JP (1) JPS5715606A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01148216U (en) * 1988-03-29 1989-10-13
US5664914A (en) * 1994-04-27 1997-09-09 Kabushiki Kaisha Mekuto Drill

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01148216U (en) * 1988-03-29 1989-10-13
US5664914A (en) * 1994-04-27 1997-09-09 Kabushiki Kaisha Mekuto Drill

Also Published As

Publication number Publication date
JPS6319285B2 (en) 1988-04-22

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