Lenox SPEED SLOT Hole Saw, 1-1/8 in Diameter, 1-7/8 in Cutting Depth, 1/2 to 20 TPI, 1/2 in Arbor, 3-1/4 in Overall Length, 1/4 in Drill, Bi-Metal Cutting Edge, Toothed Cutting Edge, 1/4 in Chuck, Hex Shank, 3/8 in Shank, Use Arbor: 5L Snap-Back, 1L, 4L or 5L Standard, Applicable Materials: Stainless and Mild Steel, Cast Iron, Copper, Brass, Aluminum, Plastic, Wood and Composition Board