JPH0428909U - - Google Patents
Info
- Publication number
- JPH0428909U JPH0428909U JP6703690U JP6703690U JPH0428909U JP H0428909 U JPH0428909 U JP H0428909U JP 6703690 U JP6703690 U JP 6703690U JP 6703690 U JP6703690 U JP 6703690U JP H0428909 U JPH0428909 U JP H0428909U
- Authority
- JP
- Japan
- Prior art keywords
- coating layer
- center drill
- groove
- tapered
- straight
- 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
- 239000011247 coating layer Substances 0.000 claims description 11
- 229910003460 diamond Inorganic materials 0.000 claims description 6
- 239000010432 diamond Substances 0.000 claims description 6
- 239000010410 layer Substances 0.000 claims 2
- 229910000997 High-speed steel Inorganic materials 0.000 claims 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims 1
- 239000002131 composite material Substances 0.000 claims 1
- 238000005240 physical vapour deposition Methods 0.000 claims 1
- 239000002356 single layer Substances 0.000 claims 1
- 238000001308 synthesis method Methods 0.000 claims 1
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims 1
- 239000012808 vapor phase Substances 0.000 claims 1
Landscapes
- Drilling Tools (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6703690U JPH0428909U (en]) | 1990-06-25 | 1990-06-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6703690U JPH0428909U (en]) | 1990-06-25 | 1990-06-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0428909U true JPH0428909U (en]) | 1992-03-09 |
Family
ID=31600261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6703690U Pending JPH0428909U (en]) | 1990-06-25 | 1990-06-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0428909U (en]) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009202302A (ja) * | 2008-02-28 | 2009-09-10 | Yamawa Seisakusho:Kk | センタ穴ドリル |
-
1990
- 1990-06-25 JP JP6703690U patent/JPH0428909U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009202302A (ja) * | 2008-02-28 | 2009-09-10 | Yamawa Seisakusho:Kk | センタ穴ドリル |
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