Freud DHS1375 Diablo High Performance Hole Saw Ideal for Drilling Wood, Plastic, Aluminum, Metal and Stainless Steel, 1-3/8" x 2-3/8" 1-3/8-inch hole saw Arbor sold separately 60 millimeter (2-3/8-inch) cutting depth for deeper holes in one pass and increased productivity Snap-Lock mandrel system for a quick and easy change with no down time One-size fits all Snap-Lock mandrel fits all Diablo hole saws from 5/8-inch to 6-inches in diameter