Thincol 3Pcs Cobalt Spot Weld Drill Bit Set, 8mm Shank, 1/4in, 5/16in, 3/8in Cutting Diameter, Automotive Sheet Metal Working, with Case

SPOT WELDING DRILL BIT -- Cobalt-containing automotive sheet metal auto repair removal spot welding drill bit, car repair and dismantling plated welding spot drill bit. EXCELLENT MATERIAL -- high-quality cobalt-containing M35 bar material is used, which has good rigidity, strong wear resistance, and can carry high-speed and high-efficiency processing. DIVERSIFIED APPLICATIONS -- removal of automotive A-pillar solder joints, general solder joint removal, automotive sheet metal solder joint removal, mechanical plate positioning drilling and other purposes. THREE SIZES -- 1/4" and 5/16" and 3/8" cutting diameters, all made of M35 cobalt-containing material, total length 45mm, shank diameter 8mm, different sizes to deal with different sizes of solder joints. MATCHING TOOLS -- generally suitable for adjustable pneumatic spot welding drill guns, with the best effect, it is a good helper for car maintenance and car sheet metal.

Material: High Speed Steel, Cobalt Steel, Cobalt Brand: Thincol