Tungsten Carbide Button Drill Bit
Designed with tungsten carbide “buttons” to add extra strength to the cast hardened button bit, this drill bit is excellent at handling medium rock formations.
Hardness (HRC/HRA) = 87-89

Outside Diameter (mm) / Unit Weight (kg)

R32
51 mm/0.47 Kg
76 mm/1.60 Kg
90 mm/1.90 Kg

R38
76 mm/1.40 Kg
90 mm/1.85 Kg
100 mm/2.70 Kg
115 mm/3.60 Kg

R51
90 mm/1.90 Kg
100 mm/2.40 Kg
115 mm/3.50 Kg
130 mm/5.00 Kg
150 mm/6.20 Kg