Retrac Button Bits
Thread drill bits are made by high quality alloy steel bar and tungsten carbides.
Through heat treatment, our drilling tools are tough enough to meet rock drilling demands and have the least loss of energy while drilling the rocks.
In addition, we can design customized thread button drill bits according to different drilling application, and custom drill bits are applicable to drill soft rock, loose-medium rock and hard rock.
(1)Bit body type: Standard/Retrac
(2)Bit body : normal type and retrac type(3)R thread: R22 R25 R28 R32 R38(4)T thread: T38 T45 T51 ST58 GT60
(5)Bit diameter: 32-127mm.
(6)Drill bit models: cross bit/button bit
(7)Button bit shape: spherical/parabolic
(8)Bit face shape: flat face and drop centre
Model and specification