Features: Strong Compatibility -- Adjustable plastic guide template with snap-lock arms fits 1-3/8-inch and 1-3/4-inch thicknesses on doors 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. Wide Applicate -- This Door Lock and Deadbolt Installation Kit is designed for use on steel and wood doors. Package Include -- Auto-Centering Drill Guide, 2-1/8inch Hole Saw, 1inch Hole Saw, 7/16in Drill Bit. Long Lasting Quality -- Bi-Metal construction hole saw with white coating, retains hardness, and corrosion resistant, long service life. Specification: Applicate Door Width Range: 1-3/8in to1-3/4in Drill Bit Shank: 7/16in Hole Saw Size: 1in , 2-1/8in Material: ABS + HSS Steel Color: Red + White Packing List: 1 * Adjustable Plastic Guide Template 1 * Pilot Drill 2 * Carbon Steel Hole Saw