Application : For use on NC and CNC machines where high productivity and accurate holes are required. Recommended for hole depths up to 4 x diameter.ADX - High Speed Steel Drills with a superlative cutting geometry and TiN coating, special thinning point and quicker that standard helix. The combination of these features gives greater accuracy, increased productivity and optimum swarf breaking.SpecificationsFlute Geometry : Quick Helix, Right hand spiral.Point Angle : Special 130? Thinned Point Convex cutting lip.Surface Treatment : TiN (Titanium Nitride)Material : High Speed Steel (HSS-TiN) DIN 345 R / BS328 / ISO235