MORSE MHSALKIT1 Installation Kit, Bi-Metal Blade

Allows accurate installation in wood or metal doors with the two most common sizes for accurate installation. Attached pass through shank arbor, variable pitch positive rake teeth reduce vibration and clear chips, M3 cutting edge is longer lasting and teeth are shock resistant. Includes one each 1 in, 2-1/8 in high-speed steel hole saws and 4-5/16 in pilot drill.