JPH01114217U - - Google Patents
Info
- Publication number
- JPH01114217U JPH01114217U JP866788U JP866788U JPH01114217U JP H01114217 U JPH01114217 U JP H01114217U JP 866788 U JP866788 U JP 866788U JP 866788 U JP866788 U JP 866788U JP H01114217 U JPH01114217 U JP H01114217U
- Authority
- JP
- Japan
- Prior art keywords
- hole
- pipe
- shank
- head portion
- gun 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.)
- Pending
Links
- 238000003754 machining Methods 0.000 claims 1
Landscapes
- Drilling Tools (AREA)
Description
第１図及び第２図は、いずれも、この考案のガ
ンドリルに用いるパイプの断面図、第３図は２枚
刃ガンドリルを示すもので、同図のイは側面図、
ロは正面図である。また、第４図は従来のパイプ
（２枚刃ドリル用）の断面図、第５図イは１枚刃
ガンドリルの側面図、ロはその正面図である。
１……ヘツド部、２……シヤンク、３……パイ
プ、４……切刃、５……オイルホール、６ａ……
ヘツド部のＶ溝、６ｂ……パイプのＶ溝。
Fig. 1 and Fig. 2 are both cross-sectional views of the pipe used in the gun drill of this invention, Fig. 3 shows a two-blade gun drill, and A in the same figure is a side view;
B is a front view. 4 is a sectional view of a conventional pipe (for a two-blade drill), FIG. 5A is a side view of a single-blade gun drill, and FIG. 5B is a front view thereof. 1...Head part, 2...Shank, 3...Pipe, 4...Cutting blade, 5...Oil hole, 6a...
V-groove in the head section, 6b...V-groove in the pipe.
Claims (1)
接続し、そのパイプの穴を介して上記ヘツド部と
シヤンクの各オイルホールを連通させた深穴加工
用のガンドリルにおいて、上記パイプの穴を、ド
リル径の約１２〜２０％の大きさの円形穴とした
ことを特徴とするガンドリル。 In a gun drill for deep hole machining, a pipe is connected between a head portion having a cutting edge and a shank, and each oil hole in the head portion and shank are communicated through a hole in the pipe. A gun drill characterized by having a circular hole having a size of about 12 to 20% of the diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP866788U JPH01114217U (en) | 1988-01-25 | 1988-01-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP866788U JPH01114217U (en) | 1988-01-25 | 1988-01-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01114217U true JPH01114217U (en) | 1989-08-01 |
Family
ID=31214748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP866788U Pending JPH01114217U (en) | 1988-01-25 | 1988-01-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01114217U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5428087A (en) * | 1977-08-03 | 1979-03-02 | Caterpillar Mitsubishi Ltd | Gun drill |
-
1988
- 1988-01-25 JP JP866788U patent/JPH01114217U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5428087A (en) * | 1977-08-03 | 1979-03-02 | Caterpillar Mitsubishi Ltd | Gun drill |