Carbide Tipped

Having trouble removing a stubborn or case harded bolt? Did you happen to break off your screw extrator in a hole while trying to remove a bolt? KnKut hard steel drill bits are carbide tipped and made for use in drilling hardened steel in the range of 48 to 65 Rockwell "C". KnKut carbide tipped drill bits can be used for drilling broken studs, spring bolts, die sections, broken easy outs, extra tough and exotic metals, brake drums and many others.