Steel drill bit (r32-51mm)

Key Attributes.

Self-Drilling Rock Anchor Systems: Hot-dip Galvanize and Plain Self Drilling Hollow Bar (R25N, R32N, R32S, R38N, R51L, R51N, T76N, T76S, 30/11, 30/14, 30/16, 40/16, 40/20, 52/26))Tungsten Carbide and Steel Cross, Button Bits (R25 x 42 mm, R32 x 51 mm, R38 x 76mm, R51 x 110mm etc. ) Anomalistic Cast Bits ( R32 x 75mm, R38 x 110mm etc. ) Three Aerofoil Cast Bits ( R38 x 110mm, R51 x 110mm etc. ) Tungsten Carbide and Steel Arched Cast Bits (R32 x 51 mm, R38 x 75mm, R51 x 110mm etc. )