This door lock installation set is built to enhance door security with a robust hole saw and a carbon steel spindle. It offers wear resistance and is safe to use, with an eco friendly design. Key benefits - Durable construction for reliable lock installation - Carbon steel hole saw and spindle provide strength and long life - Wear resistant and environmentally friendly materials Compatibility and specifications - Backset options: fits 2 3/8 inch and 2 3/4 inch backsets - Suitable for wooden doors - Versatile template supports door thicknesses of 3.5 cm and 4.5 cm (approximately 1 3/8 in and 1 3/4 in) and various lock sizes Easy and precise installation - Includes a template for effortless and accurate drilling - Template is equipped with spring latch arms for guided drilling - Easily select from different door widths and latch edges, saving time and effort High quality construction and design - Unique design features a large clearance groove to facilitate smooth drilling - Erosion resistant, bright colored components with rust resistant metal parts - Smooth finish delivers professional results Practical use scenarios - Home improvement: install or upgrade deadbolts on wooden interior doors with standard backsets - Renovation or new construction: efficiently set up door hardware across multiple wooden doors - DIY and carpentry projects: accurate alignment and drilling for various door thicknesses and lock sizes Notes - Designed to work with wooden doors and common backsets noted above - Kit emphasizes safety, durability, and ease of use without sacrificing precision or performance