JPS644509U - - Google Patents
Info
- Publication number
- JPS644509U JPS644509U JP9816687U JP9816687U JPS644509U JP S644509 U JPS644509 U JP S644509U JP 9816687 U JP9816687 U JP 9816687U JP 9816687 U JP9816687 U JP 9816687U JP S644509 U JPS644509 U JP S644509U
- Authority
- JP
- Japan
- Prior art keywords
- cylindrical body
- wall
- core drill
- cutting
- discharge hole
- 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
Links
- 239000002699 waste material Substances 0.000 claims description 4
Landscapes
- Drilling Tools (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Description
第１図はこの考案の実施例の斜視図、第２図は
同じく実施例の縦断面図、第３図は同じく実施例
の使用状態における縦断面図である。
２……センタードリル、４……筒状ボデイ、５
，６……切削チツプ、８……切削屑排出孔、９…
…スパイラル溝、１３……抜カス。
FIG. 1 is a perspective view of an embodiment of this invention, FIG. 2 is a longitudinal sectional view of the embodiment, and FIG. 3 is a longitudinal sectional view of the embodiment in a state of use. 2... Center drill, 4... Cylindrical body, 5
, 6... Cutting tip, 8... Cutting waste discharge hole, 9...
...Spiral groove, 13...Remove scraps.
Claims (1)
ボデイの端縁に切削チツプを設けたコアドリルに
おいて、前記筒状ボデイの内側壁にも切削チツプ
が突設され、かつ筒状ボデイの側壁に切削屑排出
孔が穿設されていることを特徴としたコアドリル
。 ２ 筒状ボデイの内側壁に突設した切削チツプは
、一乃至複数個とした実用新案登録請求の範囲第
１項記載のコアドリル。 ３ 切削屑排出孔は、筒状ボデイの内側壁に突設
した切削チツプに対して回転方向前方に、隣接し
て設けてある実用新案登録請求の範囲第１項記載
のコアドリル。 ４ 切削屑排出孔は、筒状ボデイの外側壁に形成
したスパイラル溝に連続している実用新案登録請
求の範囲第１項記載のコアドリル。[Claims for Utility Model Registration] 1. A core drill consisting of a center drill and a cylindrical body, in which a cutting tip is provided on the edge of the cylindrical body, the cutting tip also protruding from the inner wall of the cylindrical body, and A core drill characterized by a cutting waste discharge hole drilled in the side wall of the cylindrical body. 2. The core drill according to claim 1, wherein the number of cutting chips protruding from the inner wall of the cylindrical body is one or more. 3. The core drill according to claim 1, wherein the cutting waste discharge hole is provided adjacent to and in front of the cutting tip protruding from the inner wall of the cylindrical body in the rotational direction. 4. The core drill according to claim 1, wherein the cutting waste discharge hole is continuous with a spiral groove formed on the outer wall of the cylindrical body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9816687U JPH0222174Y2 (en) | 1987-06-26 | 1987-06-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9816687U JPH0222174Y2 (en) | 1987-06-26 | 1987-06-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS644509U true JPS644509U (en) | 1989-01-12 |
| JPH0222174Y2 JPH0222174Y2 (en) | 1990-06-14 |
Family
ID=31324186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9816687U Expired JPH0222174Y2 (en) | 1987-06-26 | 1987-06-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0222174Y2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09192912A (en) * | 1996-01-18 | 1997-07-29 | Yunika Kk | Core drill provided with cutting chip discharging hole |
| JP2015013365A (en) * | 2013-07-02 | 2015-01-22 | アーウィン インダストリアル トゥール カンパニー | Hole cutter |
| JP2021517868A (en) * | 2018-04-03 | 2021-07-29 | コリア エフエイ インダストリアル カンパニー，リミテッド | Long hole saw for composite insulation panels |
-
1987
- 1987-06-26 JP JP9816687U patent/JPH0222174Y2/ja not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09192912A (en) * | 1996-01-18 | 1997-07-29 | Yunika Kk | Core drill provided with cutting chip discharging hole |
| JP2015013365A (en) * | 2013-07-02 | 2015-01-22 | アーウィン インダストリアル トゥール カンパニー | Hole cutter |
| JP2021517868A (en) * | 2018-04-03 | 2021-07-29 | コリア エフエイ インダストリアル カンパニー，リミテッド | Long hole saw for composite insulation panels |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0222174Y2 (en) | 1990-06-14 |