JPS62121013U - - Google Patents
Info
- Publication number
- JPS62121013U JPS62121013U JP686986U JP686986U JPS62121013U JP S62121013 U JPS62121013 U JP S62121013U JP 686986 U JP686986 U JP 686986U JP 686986 U JP686986 U JP 686986U JP S62121013 U JPS62121013 U JP S62121013U
- Authority
- JP
- Japan
- Prior art keywords
- tool
- cutting edge
- center
- ridgeline
- cuts
- 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.)
- Pending
Links
- 238000005553 drilling Methods 0.000 claims description 2
Landscapes
- Drilling Tools (AREA)
Description
図は本考案の穿孔工具を示したもので、第１図
は正面図、第２図は第１図を底面からみた拡大図
などである。
１……シヤンク本体、２……チツプ、２１，２
１１，２１ａ，２１ａ１，２１ｂ，２１ｂ１……
切刃、２２，２２１……外周側切刃、Ｓ……空隙
部。
The figures show the drilling tool of the present invention, with FIG. 1 being a front view, and FIG. 2 being an enlarged view of FIG. 1 viewed from the bottom. 1... Shank body, 2... Chip, 21,2
1 1 , 21a, 21a 1 , 21b, 21b 1 ...
Cutting edge, 22, 22 1 ...Outer cutting edge, S...Gap portion.
Claims (1)
る切刃の稜線を直線と直線から構成する折線状と
なし、これと外周側を切削する曲線または直線状
の切刃と連続させ、かつ工具中心付近にある切刃
は工具の中心を基準に０．０２mmから０．２mmを
越えることのない空隙部を有せしめたことを特徴
とする穿孔工具。 When viewed from the bottom, the ridgeline of the cutting edge that cuts near the center of rotation of the tool is a broken line consisting of straight lines, and this is continuous with the curved or straight cutting edge that cuts the outer circumferential side, and the ridgeline is near the center of the tool. A drilling tool characterized in that the cutting edge has a gap not exceeding 0.02 mm to 0.2 mm with respect to the center of the tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP686986U JPS62121013U (en) | 1986-01-20 | 1986-01-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP686986U JPS62121013U (en) | 1986-01-20 | 1986-01-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62121013U true JPS62121013U (en) | 1987-07-31 |
Family
ID=30789785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP686986U Pending JPS62121013U (en) | 1986-01-20 | 1986-01-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62121013U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004501780A (en) * | 2000-06-27 | 2004-01-22 | コメート プレツィジオーンスヴェルクツォイゲ ローベルト ブロイニング ゲゼルシャフト ミット ベシュレンクテル ハフツング | Drilling tool |
-
1986
- 1986-01-20 JP JP686986U patent/JPS62121013U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004501780A (en) * | 2000-06-27 | 2004-01-22 | コメート プレツィジオーンスヴェルクツォイゲ ローベルト ブロイニング ゲゼルシャフト ミット ベシュレンクテル ハフツング | Drilling tool |