[DRILLING FUNCTION]: The hinge drilling jig is used to drill pivot holes for the hinge screws. The distance between these holes is 46mm, 47mm, 48mm or 52mm [WITH DEPTH STOP]: The hole diameter of the hinge drilling guide is 35mm. A depth limiter can be attached to the tool holder to prevent drilling too deep. The depth is limited between 15mm and 45mm. You can also remove the stop to get unlimited depth [SPECIAL DESIGN TIPS]: The tip of the concealed hinge drilling jig is specially designed to drill holes cleanly, which is very suitable for drilling concealed hinges and door locks [EASY TO USE]: Easy to use with any drill. With the help of the concealed hinge drilling guide, you can easily drill holes in the cabinet door or table. The concealed hinge jig is suitable for 35mm hinges and also for 26mm hinges [MULTI-PURPOSE]: Equipped with a 35mm Foster drill bit and a depth stop. The hinge drilling jig is suitable for drills, pistol drills, bench drills, vertical drills, handheld