Features Good material: using high quality aluminum alloy material, not easy to deform, has great durability for long-term use. Easy to adjust: adjusting the sliding block to change the margin by 3mm, 4mm, 5mm, 6mm, ideal for 46mm, 48mm and 52mm hinges. Wide utility: allows wide application in drilling door hinge holes that need different margins and home use. High Accuracy - This hinge template kit ensures easy and high precision operation as well as high woodworking efficiency. 8 PIECE IN 1 SET - There are 8 piece tools in the set, which include locator, rotary bit, reamer bit, etc., very useful. Specification: Item Type: Jig Hinge Material: Aluminum Alloy Spiral drill length: approx. 47mm/1.85 inch Spiral drill diameter: approx. 2mm/0.08 inch Diameter of the locator disk: approx. 35mm/1.38 inch Thickness of the locator: approx. 10mm/0.39 inch Locator head length: approx. 116 mm/4.57 inches Hinge hole spacing: approx. 46 mm/1.81 inches, 48 mm/1.89 inches, 52 mm/2.05 inches Reamer bit shank diameter: approx. 10mm/0.39 inch Reamer bit length: approx. 93 mm/3.66 inches Reamer bit blade diameter: approx. 35mm/1.38 inch Inner diameter of drill stop: approx. 12mm/0.47 inch Package List: 1 x Locator 1 x Helical Drill Bit 2 x L-shaped keys 2 keys 1 x Reamer Bit 1 x Drill Stop 1 x Plastic Box Small note: Do a good job of safety protection when you use it. Package List 1 x Locator 1 x Twist Drill Bit 2 x L Shape Wrench 2 x Wrench 1 x Reamer Drill Bit 1 x Drill Stop 1 x Plastic Box