Diameter
No x Buttons diameter mm
Button
angle°
Air
holes
Weight
(Kg)
Part No
mm
inch
Gauge
Front
Drill bits for GM60 hammers
152
6
8x18
4x16+4x14
38
2
22
GM60-152DCC8
165
6 1/2
8x16
23
GM60-165DFF8
178
7
8X18
10X16
24
GM60-178DFF8
185
7 1/4
10x16
25
GM60-185DFF8
194
7 1/2
10x18
13x16
26
GM60-194DFF10
203
8
8x18+6x16
28
GM60-203DCC10
216
8 1/2
47
GM60-216DCC10
235
9 1/4
12X18
30X16
55
GM60-235DFF12
254
10
12x18
12x118+8x16
63
GM60-254DCC12