Feature: 1. Install 35mm Hole Opener: Suitable for installing a 35mm hole opener, adjust the drilling depth to 12‑13mm normally, and then lock the limit ring 2. Aluminum Alloy Material: Made of aluminum alloy material, bring accurate manufacturing, positioning and easy operation, very durable 3. Accurately Fixed And Drilled: Hinge jig can be accurately fixed and drilled to prevent injuries during operation and improve accuracy 4. Great Tool Kit: This woodworking hole puncher is a great tool kit for furniture factories and woodworking enthusiasts 5. Stable Structure: Hinge jig come with stable structure, excellent performance and long service life Specification: Item Type: Hinge Jig Material: Aluminum alloy + stainless steel Purpose: Hinge opener Maximum Diameter of Hole Drill: Approx. 35mm / 1.38in Hole Depth: Approx. 13mm / 0.51in Inner Diameter of Drilling Sleeve: Approx. 12mm / 0.47in Inner Diameter of Stopper: Approx. 12mm / 0.47in Hole Drill Diameter: Approx. 11.7mm / 0.46in, 9.5mm / 0.37in. Package List: 1 x Hinge Opener1 x Spacing Ring1 x Drilling Sleeve1 x 35mm Hole Drill1 x Twist Drill2 x Open Wrench2 x L Shaped Wrench Note: Please wear protective equipment when drilling to prevent the wood dregs from splashing and hurting yourself.