Heat-treated to resist breakage and wearShock resistant tool steel for maximum durabilityMatch with any power drill and cordless drillSuperior Magnetic StrengthStraight and FastVersatile UseType of shank: 6.35mm / 1/4 inch hex.Overall length.: 65mmMaterial; chrome vanadium alloy steelWhether it is explosion-proof;Whether it is magnetic; yesWhether it is insulated;SystemHead size; 10mm