The VersaDrive Countersink is a premium quality countersink with fully ground flutes and Titanium coating to help reduce wear and blunting.VersaDrive Countersinks have a patented non-slip, Hex shank suitable for use in any standard 1/2 in. drill chuck for cordless or pistol drills or used with a VersaDrive Rapid Lock adapter for use in a wide range of powertools such as Magnetic Drills.Utilise the convenience and power of an impact wrench to quickly debur and countersink holes up to 16.5mm with minimal torque kick-back against the operator.90Deg Point Angle for Countersunk Bolt HeadsSafer use with minimal kickbackSpecially hardened for impact wrench use up to 16.5mmHigh-Grade Tool Steel for high accuracy & long lifeGoldMax low friction Titanium Coating to stop burn outHigh Strength, Non-slip shank design1st Impact rated countersinks on the market