JPS6235707U - - Google Patents
Info
- Publication number
- JPS6235707U JPS6235707U JP12555485U JP12555485U JPS6235707U JP S6235707 U JPS6235707 U JP S6235707U JP 12555485 U JP12555485 U JP 12555485U JP 12555485 U JP12555485 U JP 12555485U JP S6235707 U JPS6235707 U JP S6235707U
- Authority
- JP
- Japan
- Prior art keywords
- gun drill
- diameter
- width
- utility
- scope
- 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
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Drilling Tools (AREA)
Description
第１図はこの考案の一実施例を示す図であつて
、第３図と同様の図、第２図および第３図は従来
のガンドリルの一例を示し、第２図はその一部省
略側面図、第３図は第２図の矢視図、第４図は
この考案のガンドリルによつて明けられた穴の直
径のばらつきを示す図、第５図、第６図、第７図
はそれぞれマージン幅が０．３mm、０．４mm、０
．２mmのガンドリルによつて、明けられた穴の直
径のばらつきを示す図である。
１……ガンドリル本体、２……チツプ、５……
マージン部。
Fig. 1 is a diagram showing an embodiment of this invention, and Fig. 3 is a similar view, Figs. 2 and 3 are an example of a conventional gun drill, and Fig. 2 is a partially omitted side view. Figure 3 is a view in the direction of the arrow in Figure 2, Figure 4 is a diagram showing the variation in the diameter of holes drilled by the gun drill of this invention, Figures 5, 6, and 7 are respectively Margin width is 0.3mm, 0.4mm, 0
．． FIG. 3 is a diagram showing variations in the diameter of holes drilled with a 2 mm gun drill. 1... Gun drill body, 2... Chip, 5...
Margin section.
Claims (1)
（Ｄはガンドリルの直径）に設定したことを特徴
とするガンドリル。 The width of the margin part is 0.03D to 0.05D.
(D is the diameter of the gun drill).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12555485U JPS6235707U (en) | 1985-08-16 | 1985-08-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12555485U JPS6235707U (en) | 1985-08-16 | 1985-08-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6235707U true JPS6235707U (en) | 1987-03-03 |
Family
ID=31018548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12555485U Pending JPS6235707U (en) | 1985-08-16 | 1985-08-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6235707U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010155303A (en) * | 2008-12-26 | 2010-07-15 | Kyushu Univ | Structure and method of arranging guide portions of tip tool for deep hole boring |
-
1985
- 1985-08-16 JP JP12555485U patent/JPS6235707U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010155303A (en) * | 2008-12-26 | 2010-07-15 | Kyushu Univ | Structure and method of arranging guide portions of tip tool for deep hole boring |