R25螺纹钻头头部

直径

Diameter

合金数量、直径

No x Buttons diameter mm

角度

Button

angle°

水孔

flushing holes

重量

Weight

(Kg)

编号

Part No

mm

inch

边齿

Gauge

中齿

Front

Side

Front

R25（1’’）BUTTON BIT-（Spherical  buttons& Ballistic  buttons）

33

15∕16

5×7

2×7

35°

1

1

0.4

GD33-R25PFF5N

35

13∕8

5×9

2×7

30°

1

1

0.5

GD35-R25PFF5N

38

11∕2

5×9

2×7

30°

1

1

0.6

GD38-R25PFF5N

38

11∕2

4×9

2×8

30°

2

1

0.5

GD33-R25PFF4N

41

15∕8

5×9

2×8

35°

1

1

0.6

GD41-R25PFF5N

41

15∕8

4×9

2×9

35°

2

1

0.6

GD41-R25PFF4N

45

13∕4

5×11

2×8

30°

2

1

0.7

GD45-R25PFF5N

45

13∕4

4×11

2×9

35°

2

1

0.6

GD45-R25PFF4N

48

17∕8

5×11

2×9

35°

2

1

1.0

GD48-R25PFF5N