Klein Tools 31635 13-Piece Journeyman's Hole Saw Kit Includes: 9 bi-metal hole saws (3/4-Inch, 7/8-Inch, 1-1/8-Inch, 1-3/8-Inch, 1-1/2-Inch, 1-3/4-Inch, 2-Inch, 2-1/4-Inch, 2-1/2-Inch) Also includes 3 arbors (Cat. Nos.: 31650, 31670, 31660) and 1 arbor extender (Cat. No. 31678) All components are packed in a rust-proof, molded plastic carrying case Note: Set pilot drill point 1/8-Inch beyond tooth points Read and follow safety instructions in power tool owner's manual