1. 68mm to unlimited hinge positioning from door end 2. Works with 3mm, 4mm, 5mm, 6mm hinge offsets 3. All aluminum alloy products, beautiful and durable 4. 35MM hinge hole, small drill bit positioning hole 5. Equipped with universal clamp, stable and strong clamping Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Made of high quality aluminum alloy, precise manufacturing to keep a long service life. Concealed hinge jig can fix quickly and drill precisely without measuring, prevents injuries during operation and improves work efficiency. Not only suitable for your home operation,like drilling for Cabinet / Kitchen / Wardrobe / Cupboard Door. Also a great tool for furniture factories and woodworking enthusiasts suitable for most common hinges. Hole Opener Size:35MM Three groups of hole spacing:45mm to 9.5mm/48mm to 6.3mm/52mm to 5.5mm Colour:Red Material:Aluminum alloy Package Contents: 1 x Hinge Boring Jig Set 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.