Portable Door Lock Mortiser Kit with 3 Tungsten Steel Burrs 18 22 25mm Door Lock Installation Kit

Fast and accurate on doors from 30mm to 85mm thick Jig for precision cutting mortise and rose rings using your electric drill Can cut door hinges and also some electric strikes and triggers Comes with 18, 22 and 25mm tungsten steel cutters, vertical guides with height and depth stops workmanship and easy operation, suitable for hotel door installation, security doors and changing door locks, etc