ANGELSWORD door lock hole opener Kit is designed for opening new lock hole on wooden doors to install door locks. Includes a metal bracket, a drilling rig, three cutters, wrench, ruler, woodworking chisel. 3 cutters made of tungsten steel, higher quality over high-speed steel. Sizes: 18/22/24 mm (0.7/0.87/0.95 inch). The lock mortising kit fits wooden doors of 25-100mm (0.98-3.93 inch) thickness. Achieve 25mm by fixing diagonally.The maximum opening groove depth is 130mm (5.1 inch), and maximum opening groove length is 260mm (10.2 inch). Used for the installation of various strip woodworking door locks, password locks, fingerprint locks, suitable for home, hotel and engineering use.