Our tapered drill bits are made with high quality alloy steel bar and tungsten carbides, through heat treatment.
(1)Taper angle: 4°,4°46″,6°,7°,11°,12°
(4)Button bit shape:spherical/parabolic
(5)Socket inside dia:15/19/22/25mm
Used under any rock drilling conditionand mainlyused for hard or very hard rock formation because of it's comprehensive adaptability. Compared with taper chisel bits, taper cross bits have a better drilling performance because of carbide tips on cross bits doubled.