CPR54反循环钻头及耐磨套 Reverse Circulation Drill Bit And Shroud
直径Diameter
合金齿数量、直径No. x Button diameter(mm)
边齿角度Button angle
水孔Flushing holes
耐磨套外径Shroud Diameter
重量Weight
编号Part No.
mm
inch
边齿Gauge Button
中齿Front Button
kg
136
5 3/8
8 x 16mm
6x16+3x14
35
2
134
18.2
PR54-136
140
5 1/2
138
18.5
PR54-140
143
5 5/8
141
18.8
PR54-143
146
5 3/4
144
19.2
PR54-146
