diameter
no x buttons diameter mm
button
angle°
air
holes
weight
(kg)
part no
mm
inch
边齿
gauge
中齿
front
drill bits for gbr1a hammers
64
3 9/16
6x10
3x10
38
2
2.6
gbr1-64bff6
70
3 3/4
6x12
4x9
2.8
gbr1-70bff6
76
3 15/16
6x13
5x10
3.2
gbr1-76bff6