Upgraded Aluminum Alloy Construction: Crafted from -machined 6061 aluminum alloy material with anodized , this professional hinge routing template outperforming plastic competitors by 300% in deformation resistance. Its robust design guarantees install for all your door hinge projects. Widely Compatible: Our door hinge jig is designed for both round hinges (1/4inch, 5/8inch radius) and square corner hinges (chisel required), allowing you to cut professional hinge mortises with 2-1/2inch to 5inch length. Perfect for use with most door types, this door installation kit makes cutting and mounting hinges effortless. Note: Only work on the door, not the jamb. & Ease of Use: The door hinge tool features a built-in depth gauge for thick (4-1/2inch, 5inch) and thin hinges (2-1/2inch, 3inch, 3-1/2inch, 4inch), ensuring accurate cuts every time. Equipped with a self-centering hinge bit and double-ended screwdriver bit, it eliminates the need for multiple tools. Silicone anti-skid pads provide stability and preventing door damage during installation. User-Friendly Design: With a clear and straightforward structure, this hinge jig is easy to operate, even for beginners. No skills or complicated tools are required, making it ideal for DIYers and professionals alike. Save time on interior and exterior door installations with this efficient door hinge mortiser. Color: As Shown Material: Aluminum Alloy Package Contents: 1 set x Door Hinge Jig Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.