diameter
no x buttons diameter mm
button
angle°
air
holes
weight
(kg)
part no
mm
inch
gauge
front
drill bits for gbr2a hammers
76
3 9/16
6x13
5x10
38
2
3.6
gbr2-76bff6
80
3 3/4
5x11
4.0
gbr2-80bff6
90
3 15/16
6x14
5x12
4.2
gbr2-90bvc6