[Integrated Door Hinge Mortise] Equipped with two removable sliding mechanisms and hinge shape guides, our Door Hinge Mounting Kit is a great accessory for cutting and mounting door hinges with 1/4 inch (approx. 1.4 cm) round or 5/8 inch (approx. 1.9 cm) round or square corner hinges. This hinge jig allows you to cut professional-looking mortises from 2-1/2 in. Easy to install and use] Step 1: Lay out the door position and mark the hinge position. Step 2: Set the template to the appropriate hinge size. Step 3: Set the template to fit your hinge shape (square or radius corners). Step 4: Insert the pin into the appropriate door thickness and turn clockwise to lock. Step 5: Place the template and hinge on the bottom Adjust the depth of the drill bit to suit the hinge thickness.Step 6: Position the hinge template onto the door frame, centre mark and nail both in place. [No Hammer and Chisel Required] You only need to use this hinge template and a router or compact router to install the door hinges. Located on the outside wall of the wiring area, simply place the template and hinge on the bottom of the router and install the bit on the hinge, adjust the depth of the bit, adjust the thickness of the hinge, and then cut the door hinge shape from the template area. Definitely better and faster than using a chisel. Suitable for Doors and Door FramesThis door hinge mortise template is made of sturdy plastic material that is stable enough not to damage the door when you install the hinges, and it is strong enough to be used frequently. The hinge router template allows you to adjust hinge length, thickness, round and square corners. Easily cut and install hinges. Better than chiselling them out. (Note: Do not work on existing and installed door frames.)