Tools & Gear Hole Saws Cobalt Bi-metal

7050-5519CT 3/8" Hex Shank TCT Mandrel Compatible will all leading brand hole saws. Fits 3/8" and 1/2" chuck drills. Ideal for use with impact drivers. Tungsten carbide tipped pilot drill for long bit life in abrasive materials. Suitable for use with 14-30mm hole saws.