Title:
HOLE DRILLING TOOL
Document Type and Number:
Japanese Patent JP2018001297
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a hole drilling tool which can efficiently remove a burr without damaging a pressure of a jet fluid for deburring.SOLUTION: According to this hole drilling tool, a scrap discharge groove 4 is formed on a tip circumference of a tool body 1 which is rotated around an axis O, a cutting edge 6a is provided on a periphery of a wall surface of the scrap discharge groove 4 which is directed in a tool rotation direction T, and an exhaust port for a fluid for deburring 10b is provided on a periphery of the tool body 1 which is spaced from the scrap discharge groove 4 in a circumferential direction on the axis O direction rear end side with respect to the cutting edge 6a.SELECTED DRAWING: Figure 1
Inventors:
MATSUDA HIROYUKI
Application Number:
JP2016127691A
Publication Date:
January 11, 2018
Filing Date:
June 28, 2016
Export Citation:
Assignee:
MITSUBISHI MATERIALS CORP
International Classes:
B23B47/34; B23B29/03; B23B29/12; B23Q11/10; B26F1/00
Attorney, Agent or Firm:
Masatake Shiga
Mitsuo Teramoto
Yasushi Matsunuma
Fumihiro Hosokawa
Kazunori Onami
Mitsuo Teramoto
Yasushi Matsunuma
Fumihiro Hosokawa
Kazunori Onami
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