4 46", 6, 7, 11, 12 Taper Degree
Tungsten Carbide
Chisel Bit/Cross Bit/Button Bit
granite, Marble, Sandstone etc
15, 19, 22, 25mm
for Rock Drilling, Quarrying, Mining
Spherical/Parabolic
with Rock Drill Y20 Y24 Yt24 Yt28 etc.
with Taper Drill Steel Rod
Within 25days After Receipt Your Payment by T/T
Plywood Box, Carton, Wooden Case, etc