Irwin® 373218BX Linear Edge Variable Pitch Hole Saw, 2-1/8 in Dia, Bi-Metal Cutting Edge

Irwin® Hole Saw, Linear Edge Variable Pitch, 2-1/8 in Dia, 4/6 TPI, 3-1/2 in Overall Length, Bi-Metal Cutting Edge, Bi-Metal Body, Toothed Cutting Edge, 160 rpm, Hex Shank, 3/8 in Shank, Blue, Applicable Materials: Aluminum, Brass, Cast Iron, Mild Steel, Stainless Steel, Steel, Tool Steel, Copper and Zinc