Featuring reinforced guide template and carbon steel hole drilling, the allows for easy of door width and setback, minimizing manual measurements for seamless installations This door hole drilling delivers durability and precisions with carbon steel construction and adjustable template, ensuring for accurate drilling on various door type for drilling holes on wooden doors with thicknesses ranging from 1 3/8 to 1 3/4inches, it adapts to common size for quick installations in residential or commercial setting With including snaping on arm guide and multiple hole drilling, this wood door drilling set streamlines process, reducing setupS time and enhancing overall productivity for both professional contractors and enthusiasts, this installation caters to users seeking efficient and errorfree door setups home or workshop environment, Manufacturer: AMISENK