JPS5844118U - gun drill - Google Patents

gun drill

Info

Publication number
JPS5844118U
JPS5844118U JP13881881U JP13881881U JPS5844118U JP S5844118 U JPS5844118 U JP S5844118U JP 13881881 U JP13881881 U JP 13881881U JP 13881881 U JP13881881 U JP 13881881U JP S5844118 U JPS5844118 U JP S5844118U
Authority
JP
Japan
Prior art keywords
gun drill
cutting edge
chip breaker
concave portion
tip
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
JP13881881U
Other languages
Japanese (ja)
Other versions
JPH0141526Y2 (en
Inventor
大川　正利
Original Assignee
東芝タンガロイ株式会社
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 東芝タンガロイ株式会社 filed Critical 東芝タンガロイ株式会社
Priority to JP13881881U priority Critical patent/JPS5844118U/en
Publication of JPS5844118U publication Critical patent/JPS5844118U/en
Application granted granted Critical
Publication of JPH0141526Y2 publication Critical patent/JPH0141526Y2/ja
Granted legal-status Critical Current

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  • Drilling Tools (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は、本考案ガンドリルの一実施例を示す要部の正
面図、第２図は、第１図中の■−■線に　−沿って得ら
れる部分的な拡大断面図、第３図乃至第５図は、それぞ
れ第２図に相当する変形例を示す部分的な拡大断面図で
ある。 １・・・本体、２・・・切刃チップ、５・・・外周切刃
稜、７・・・チップブレーカ−１８，９・・・凹み部分
。Fig. 1 is a front view of essential parts showing one embodiment of the gun drill of the present invention, Fig. 2 is a partially enlarged cross-sectional view taken along line -■ in Fig. 1, and Fig. 3 5 to 5 are partially enlarged sectional views showing modifications corresponding to FIG. 2, respectively. DESCRIPTION OF SYMBOLS 1... Main body, 2... Cutting blade tip, 5... Outer circumferential cutting edge ridge, 7... Chip breaker-18, 9... Concave portion.

Claims (1)

【実用新案登録請求の範囲】 パイプ状をなす本体１の先端には、外周切刃稜５に沿う
チップブレーカ−７を形成するようにした切刃チップ２
が設けられ、かつ、その後端にはシャンク３が備えられ
るようにしたガンドリルにおいて、 前記チップブレーカ−７は、外周切刃稜５側から小さな
凹み部分８および大きな凹み部分９が連設され、切屑処
理に対処できるようになっていることを特徴とするガン
ドリル。[Claims for Utility Model Registration] A cutting edge tip 2 is formed at the tip of a pipe-shaped main body 1 to form a chip breaker 7 along the outer cutting edge edge 5.
In the gun drill, the chip breaker 7 has a small concave portion 8 and a large concave portion 9 connected to each other from the outer peripheral cutting edge 5 side, and the chip breaker 7 has a shank 3 at the rear end. A gun drill that is characterized by its ability to handle processing.
JP13881881U 1981-09-18 1981-09-18 gun drill Granted JPS5844118U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13881881U JPS5844118U (en) 1981-09-18 1981-09-18 gun drill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13881881U JPS5844118U (en) 1981-09-18 1981-09-18 gun drill

Publications (2)

Publication Number Publication Date
JPS5844118U true JPS5844118U (en) 1983-03-24
JPH0141526Y2 JPH0141526Y2 (en) 1989-12-07

Family

ID=29932027

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13881881U Granted JPS5844118U (en) 1981-09-18 1981-09-18 gun drill

Country Status (1)

Country Link
JP (1) JPS5844118U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60133938A (en) * 1983-12-22 1985-07-17 Matsushita Electric Works Ltd Parts receiving device
JPH0470418U (en) * 1990-10-25 1992-06-22

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60133938A (en) * 1983-12-22 1985-07-17 Matsushita Electric Works Ltd Parts receiving device
JPH0470418U (en) * 1990-10-25 1992-06-22

Also Published As

Publication number Publication date
JPH0141526Y2 (en) 1989-12-07

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