JPH02121902U - - Google Patents
Info
- Publication number
- JPH02121902U JPH02121902U JP3103589U JP3103589U JPH02121902U JP H02121902 U JPH02121902 U JP H02121902U JP 3103589 U JP3103589 U JP 3103589U JP 3103589 U JP3103589 U JP 3103589U JP H02121902 U JPH02121902 U JP H02121902U
- Authority
- JP
- Japan
- Prior art keywords
- cutting edge
- line
- tip
- convex arc
- drill
- 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
- 230000000149 penetrating effect Effects 0.000 claims description 9
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical group O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Drilling Tools (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989031035U JPH0721287Y2 (ja) | 1989-03-17 | 1989-03-17 | 貫通錐 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989031035U JPH0721287Y2 (ja) | 1989-03-17 | 1989-03-17 | 貫通錐 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02121902U true JPH02121902U (de) | 1990-10-04 |
| JPH0721287Y2 JPH0721287Y2 (ja) | 1995-05-17 |
Family
ID=31256604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989031035U Expired - Lifetime JPH0721287Y2 (ja) | 1989-03-17 | 1989-03-17 | 貫通錐 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0721287Y2 (de) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS518699A (ja) * | 1974-07-10 | 1976-01-23 | Yoshimasa Nagai | Tokobashiratateanasenkosochi |
-
1989
- 1989-03-17 JP JP1989031035U patent/JPH0721287Y2/ja not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS518699A (ja) * | 1974-07-10 | 1976-01-23 | Yoshimasa Nagai | Tokobashiratateanasenkosochi |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0721287Y2 (ja) | 1995-05-17 |