Dormer Pramet R520 7.70 mm CARBIDE TiN CDX STRAIGHT SHANK STUB DRILL DIN 6539130 degree point helps with self centering and reduces the push force required; Titanium Nitride coating increases service life of the drill, improved performance when drilling harder materials; Convex Cutting Edges helps break chips easier to aid removal and allow increased cutting speed and feeds.; Premium carbide material can be used for drilling many materials including steel, aluminium, stainless steel; High performance drill capable of producing