Diameter

No x Buttons diameter mm

Button

angle°

Air

holes

Weight

(Kg)

Part No

mm

inch

Gauge

Front

　Drill bits for GM40 hammers

105

4 1/8

7x16

6x14

38

2

6.0

GM40-105BVC7

110

4 5/16

7X16

6X14

38

2

6.2

GM40-110BVC7

115

4 1/2

7X16

6X14

38

2

6.6

GM40-115BVC7

120

4 3/4

8x16

8X13

38

2

7.0

GM40-120BVC8

125

4 15/16

8x16

10x13

38

2

7.4

GM40-125BVC8

130

5 1/8

8x16

8x14

38

2

8.0

GM40-130DVC8