Milwaukee 49-22-4063 Hole Saw Lock Set KitIncludes everything you need to install a door lock The 4/6 tooth design with varying tooth sets and gullet depths provides a more efficient chip clearance and less heat build up Also requires less feed pressure to accomplish the drilling of the holes 1" hole saw with 4/6 tooth configuration 2-1/8" hole saw with 4/6 tooth configuration 3/8" hex arbor Arbor spacer Adapter