1.Unique concave carbide tipdesign, accelerates drilling speed,reduces wear and supports dust removal.
2.Most rigid joints through copper-silver brazing. Carbide is totallyembedded in both sides of thesteel body. Super tough TWIN MAX.
flute. Fastest and mostefficient dust removal. Annealed,shot-peened chrome, nickel,molybdenum steel to prevent pre-mature fatigue failures
3.Industrial finish.
4. Bit diameters meet JB-T8368.1-1996 Standard