Ergonomic handle: The door lock installation kit features an ergonomic handle that provides a secure, comfortable grip and reduces hand fatigue. It prevents slipping for precise and safe cutting, and the mortise installation tool is ideal for door lock installation tasks. Hard contour blade: The door latch mortise tool is made from hard, impactquality material. The contour blade minimizes the risk of door damage compared to traditional chisels, and the blade includes a predepth setting for seamless latch plate installation. Quality blade: The latch tool blade is treated with a special process to create a precise edge, resulting in a sturdy, hardness tool suitable for both softwood and hardwood. Precise guide head: The guide head aligns accurately with the door edge hole and automatically positions itself without deviation, helping you achieve a cutting template. Use scenarios Installing or replacing a door latch in residential interior or exterior doors, ensuring clean mortises and precise latch plate fit. Working on or retrofitted doors where a softwood or hardwood frame requires accurate mortising and latch alignment. Renovating or upgrading door hardware during remodeling projects, providing consistent results and reducing the risk of door damage.