Door Lock Installation Kit saves time and frustration when installing locksets and deadbolts. Designed for accuracy and ease of use, the Door Lock Installation Kit makes it simple to align and drill holes in slab doors. Whether you're remodeling, replacing a damaged door or adding a deadbolt, the auto-centering guide and anti-splinter depth stop let you make centered holes with a clean finish. This Ace Brand lock kit includes the two most popular size hole saws, 1 in. and 2-1/8 in. for lock installation, to assure accurate installation in wood or metal doors. An adjustable resin template is included for proper placement.