1. Integral Drill Steels (Integral Drill Rods)
Shank H22x108mm, H19x108mm, standard
hex. Bit diameters include 20-42mm.
2. Tapered Drilling Tools (Tapered Drill Steel)
Shank H22x 108mm, (6, 7, 11, 12 degree taper) taper rods in most lengths.
A comprehensive range of button bits, cross bits and chisel bits with (6, 7, 11, 12 degree taper).
Bit diameter: 28mm-57mm.
3. Threaded Button Bits
Button bit, face design: Flat face, Drop centre, Normal and Retrac body; Tungsten carbide buttons: spherical, ballistic and conical. (Threaded R22 R25 R28 R32 T38 T45 T51 GT60; bit diameter: 32mm-152mm).