2500 strength 10.25mm diameter Conical button bits for drilling bits for medium hard rock Specifications Carbide:TGC3 Diameter 10.25mm Density 14.95g....
SR2.8 with Hardness 86.6 HRA Tungsten carbide Conical button bits medium-hard and very hard formations Conical button bits: Diameter: 8.25mm Height: ....
HRA 86.0 Mushroom sharp button bit for cutting hard and very hard formations Conical button bits: Diameter: 12mm Height: 22mm h: 8 R: 30 r: 1.5 α: - β...