497-TA20 Features: -Attached arbor is convenient and time-saving.-Variable pitch positive rake teeth reduce vibration and clear chips to improve cutting speed.-Teeth are shock resistant.-Applicable Materials: Wood, Plastic, Metal, Plywood, Pipe, Stainless Steel.-Cutting Edge Material: Bi-Metal.-Price is for 1 Each. Dimensions: -Cutting Length: 1 1/2 in.