Roll Forged & Black Groove DIN338 HSS Twist Drill Bit



Manufacturing Process: Roll & Black Groove.
 
Material: High Speed Steel (HSS).
 
Sizes:1.0mm-20mm.
 
Surface Finishing: Black, Black & White, Coffee, etc.
 
Point Angle:118°or 135° (Split Point are available from 3mm).
 
Application:

1. In all rotary and percussion drilling machines;

2. In machines for mechanical processing;

3. Only for rotary use.  


Size:


Diameter (mm)

Flute Length (mm)

Overall Lenghth (mm)

 

Diameter (mm)

Flute Length (mm)

Overall Lenghth (mm)

1

12

34

11

94

142

1.5

18

40

11.5

94

142

2

24

49

12

101

151

2.5

30

57

12.5

101

151

3

33

61

13

101

151

3.5

39

70

13.5

108

160

4

43

75

14

108

160

4.5

47

80

14.5

114

169

5

52

86

15

114

169

5.5

57

93

15.5

120

178

6

57

93

16

120

178

6.5

63

101

16.5

125

184

7

69

109

17

125

184

7.5

69

109

17.5

130

191

8

75

117

18

130

191

8.5

75

117

18.5

135

198

9

81

125

19

135

198

9.5

81

125

19.5

140

205

10

87

133

20

140

205

10.5

87

133

 

 

 



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