Disston 777182 Master Mechanic 2-1/8 Inch Bi Metal Hole Saw

Master mechanic, bi-metal hole saw, 2-1/8 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 quick change mandrel, model #100688 / #102486 and 7/16 inch quick change mandrel model #100689 / #752980 & 1/4 inch bi-metal pilot drill, model #779942. Bulk, mandrel not included.