IVY Classic 27006 5-Piece Carbon-Steel Hole Saw Set, Wood/Plastic Cutting, Carded Cuts wood, plastic and composition materials High carbon-steel construction Precision ground teeth for smooth cuts Set includes 1-1/4-inch, 1-1/2-inch, 2-inch and 2-1/8-inch carbon-steel hole saws Set includes 3/8-inch hex D-type arbor with a 1/4-inch pilot drill