Disston 778032 Master Mechanic 3-1/2 Inch Bi Metal Hole Saw 1-1/2 Inch Deep

Master mechanic, bi-metal hole saw, 3-1/2 inch arbor, high speed steel cutting edge, 1-1/2 inch depth of cut provides easy cutting in the toughest applications, features 3/16 inch backing plate which eliminates need for separate drive plate on hole saws under 3 inch in diameter & prevents mandrel strip out. Designed to cut hard & soft wood, nail embedded wood, stainless steel, pipe, rubber & conduit, can be used with 3/8 inch bi-metal saw mandrel, model #e0100687, true value #896313, 3/8 inch quick change mandrel, model #e0100688, true value #102486, 7/16 inch quick change mandrel, model #e0100689, true value #752980 & 1/4 inch bi-metal pilot drill, model #e0100659, true value 779942, bulk, mandrel not included.