- Comprehensive Package: Includes 2 adjustable plastic guide templates, 2 hole saws (2-1/8" and 1"), and 2 arbors with drill bits for all your door installation needs. - Durable Construction: Crafted from high-quality carbon steel for the hole saws and reinforced plastic for the guide templates, ensuring longevity and reliable performance. - Precision Drilling: The adjustable guide template allows for accurate drilling with ease. The snap-lock arm allows you to select door width and backset effortlessly, making the process straightforward. - Versatile Compatibility: Designed for common lock sizes in wooden doors, this kit accommodates door thicknesses of 1-3/8 inches, 1-1/2 inches, and 1-3/4 inches, as well as backsets of 2-3/8 inches and 2-3/4 inches. - Practical Applications: Ideal for both DIY enthusiasts and professionals, use this kit for installing new locks, replacing old ones, or modifying existing doors. Perfect for home renovations, new constructions, or handyman services. - User-Friendly Design: Drill one side of the door panel vertically to halfway through, then complete the other side until it fully penetrates, ensuring clean and precise holes every time. This product is an essential tool for anyone looking to install locks efficiently and accurately in wooden doors, combining high-quality materials with practical functionality.