Door latch tool helps remove materials from door latch installation, flush mounted, easy to use Supports door thickness from 1-3/8" to 1-3/4", suitable for both residential and commercial environments The guide head of the latch mortise tool is inserted into the hole on the 1.0" door edge and the outline is automatically positioned to precisely cut the contour of the door latch without measuring Work in conjunction with the strike head and mortise hole of the door latch mounting tool to remove material within the contour at a preset depth for quick, precise, and smooth installation Door latch mortise tool is designed for creating and cutting holes in woodworking projects. Ensures precise installation during replacement and repair work, Manufacturer: LEMEIGUO