Milwaukee 49-22-4073 Polycarbonate 1-3/8" - 1-3/4" Door Lock and Deadbolt Installation Kit with Included Hole Saw, Auto-Centering Guide and Non-Slip Clamp (Drill / Driver Not Included) INCLUDES: Auto-Centering Drill Guide, Anti-Splinter Depth Stop, 2-1/8" Ice Hardened Hole Saw, 1 Ice Hardened Hole Saw, Small Arbor and Pilot Bit, Arbor Adaptor and Spacer, 3/32 Drill Bit, 1/8" Drill Bit EASY LOCKSET INSTALLATION: You can prepare your door for locksets and deadbolts in only two steps. Simply clamp the unit to the door and drill out your pre-aligned holes STREAMLINED PLUG REMOVAL: An access slot on the side of the saw bits allows you easy access to plugs with your hand tools. This will shave off tons of preparation time for your next cut ANTI SPLINTER DEPTH STOP: This plastic piece will fit into your hole saw, preventing it from blowing through a door. It makes cleaner holes for a more professionally-installed appearance NO SCREWS NECESSARY: Some lockset kits will require you to fasten them to the door with screws or other fasteners. The 49-22-4073 has an onboard clamp that seals it flush to the door without scuffing