JPS62147417U - - Google Patents
Info
- Publication number
- JPS62147417U JPS62147417U JP3561086U JP3561086U JPS62147417U JP S62147417 U JPS62147417 U JP S62147417U JP 3561086 U JP3561086 U JP 3561086U JP 3561086 U JP3561086 U JP 3561086U JP S62147417 U JPS62147417 U JP S62147417U
- Authority
- JP
- Japan
- Prior art keywords
- cutting edge
- tip
- shank
- curved surface
- shaped
- 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
- 240000007594 Oryza sativa Species 0.000 claims 1
- 235000007164 Oryza sativa Nutrition 0.000 claims 1
- 235000009566 rice Nutrition 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Description
第１図は本考案の一実施例の全体斜視図、第２
図ａ及びｂは第１図のＡ―Ａ′線における第１及
び第２の実施例の断面図、第３図は本実施例によ
りメートル・バーリングめねじ下穴加工を行つた
状況を示す断面図である。
１…工具本体、２…シヤンク、３…首部、４…
刃部、５…切れ刃、６…板材、７…環状凸部。
Fig. 1 is an overall perspective view of one embodiment of the present invention;
Figures a and b are cross-sectional views of the first and second embodiments taken along the line A-A' in Figure 1, and Figure 3 is a cross-sectional view showing the situation in which a pilot hole for a metric burring female thread is machined according to this embodiment. It is a diagram. 1...Tool body, 2...Shank, 3...Neck, 4...
Blade portion, 5... Cutting edge, 6... Plate material, 7... Annular convex portion.
Claims (1)
クの先端部に設けられ横断面が三角形（おむすび
形）の凸曲面と凹曲面とにより形成された首部と
、該首部の先端部に切れ刃を含んで設けられた刃
部とを備えることを特徴とするバーリング・ドリ
ル。 A cylindrical or triangular prism-shaped shank, a neck formed by a convex curved surface and a concave curved surface with a triangular (rice ball-shaped) cross section provided at the tip of the shank, and a cutting edge at the tip of the neck. A burring drill, characterized in that it is provided with a cutting edge section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3561086U JPS62147417U (en) | 1986-03-11 | 1986-03-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3561086U JPS62147417U (en) | 1986-03-11 | 1986-03-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62147417U true JPS62147417U (en) | 1987-09-17 |
Family
ID=30845260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3561086U Pending JPS62147417U (en) | 1986-03-11 | 1986-03-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62147417U (en) |
-
1986
- 1986-03-11 JP JP3561086U patent/JPS62147417U/ja active Pending