Hole Saw Door Lock Installation Kit, Bi-Metal

Bi-Metal, Hole Saw Door Lock Installation Kit, Can Be Used On Both Wood and Metal Doors, Kit Includes 1" and 2-1/8" Bi-Metal Hole Saws, Arbor, Arbor Adapter, 2 Adjustable Bushings and Drill Guide, Alignment Window and Taller Bushings Deliver Accurate Height Placement and Straight Drilling, Adjustable Bushings Accept Both Standard Backsets and Door Thickness, Utilizes C-Clamp Design For Tool Free Clamping.