JPS61144905U - - Google Patents
Info
- Publication number
- JPS61144905U JPS61144905U JP2553385U JP2553385U JPS61144905U JP S61144905 U JPS61144905 U JP S61144905U JP 2553385 U JP2553385 U JP 2553385U JP 2553385 U JP2553385 U JP 2553385U JP S61144905 U JPS61144905 U JP S61144905U
- Authority
- JP
- Japan
- Prior art keywords
- groove
- drill structure
- tip
- helix angle
- angle
- 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
- 230000007423 decrease Effects 0.000 claims 1
Landscapes
- Drilling Tools (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2553385U JPS61144905U (nl) | 1985-02-26 | 1985-02-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2553385U JPS61144905U (nl) | 1985-02-26 | 1985-02-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61144905U true JPS61144905U (nl) | 1986-09-06 |
Family
ID=30520686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2553385U Pending JPS61144905U (nl) | 1985-02-26 | 1985-02-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61144905U (nl) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6442815U (nl) * | 1987-09-05 | 1989-03-14 | ||
| JPH03142117A (ja) * | 1989-10-27 | 1991-06-17 | Mitsubishi Materials Corp | 穴明け工具 |
-
1985
- 1985-02-26 JP JP2553385U patent/JPS61144905U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6442815U (nl) * | 1987-09-05 | 1989-03-14 | ||
| JPH03142117A (ja) * | 1989-10-27 | 1991-06-17 | Mitsubishi Materials Corp | 穴明け工具 |