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
t38(11/2’’)button bit-(spherical buttons& ballistic buttons)
64
2 1∕2
8×10
4×10
35°
1
2
1.6
gd64-t38pff8n
6×10
3×10 1×10
-
3
1.7
gd64-t38pcc6n
2.2
gd64-t38pcc6r
70
2 3∕4
2.3
gd70-t38pff8n
gd70-t38pcc6n
76
8×11
4×11
2.6
gd76-t38dff8n
6×12
3×12
gd76-t38pff6n
4×11 1×11
4
2.4
gd76-t38pcc8n
3.4
gd76-t38pcc8r
89
3 1∕2
8×12
4×12
3.2
gd89-t38pff8n
3.0
gd89-t38dcc8n
4.6
gd89-t38pcc8r