Door Centre Marker – Lock & Latch Drilling Guide

This simple centre marking tool makes it quick and accurate to find the centre of a door edge when drilling for a tubular latch or lock. Designed for everyday joinery work, the two guide wheels sit on each side of the door while the centre hole marks the exact middle of the edge. Just place it on the door, mark through the hole, and you’re ready to drill. The tool works on doors up to 50 mm thick, making it ideal for most internal doors.Boost MeIf this tool helped with your door install, please consider boosting the model. It really helps support new designs. Thanks!DimensionsOverall length: 100 mmDistance between guides: 60 mmSuitable for door thickness: Up to 50 mmFeaturesQuick and accurate centre markingNo measuring requiredSimple one-piece printCompact and easy to keep in a toolboxPrintingSupports: NonePrint orientation: Flat on the build plateInfill: 15–20 % recommended Perfect for joiners, carpenters, DIY installers, and door fitting.