Pro-Lok - 1/4" x 4" Safe Drill Bit - Tungsten Carbide

The 1/4” x 4” in. Safe Bit features a special 6.4 mm Tungsten Carbide tip with a unique negative rake angle and a shortened chisel edge that increases it’s effectiveness and reduces tip failure. Each PRO-LOK® Butter Bit is diamond ground for razer sharpness to withstand the rigors and temperatures a locksmith may encounter when drilling hardplate for entry into a safe.