Features: 1Durable And Accurate: Concealed hinge boring jig kit made of premium aluminum alloy accuracy manufacturing sturdy and durable. Accurate positioning and easy to operate. 2Wearable And Efficient: The hole drilling guide locator adopts a new design drill sleeve which is more wearable and opens the hole more smoothly not easy to jam. 3Adjustable: Hole opener tool has adjustable rubber pressure plate which can clamp the thickness of the board from 15 to 25mm with a wider range of application. 4Professional: The hinge boring jig hole drilling kit 35mm hinge punch matching drill bit can be used for carbide hardwood drilling efficient and durable. 5Application: Puncher guide locator adjustable to tighten different thickness of wood boards. Suitable for furniture factories professionals and woodworking enthusiasts. Specification: Item Type: Concealed Hinge Boring JigMaterial: Aluminum AlloyClampable Board Thickness Range: Approx. 1525mm / 0.61inDrill Hole Size: Approx. 35mm/1.4inGross Weight: Approx. 480g/16.9ozUse: 35mm Hinge Hole Opening and Installation Door Hinge Hole Drilling and Positioning Woodworking Hole Opening Aids Package List: 1 xConcealedHingeBoringJig1 x Storage Box1 x Hole Opener2 x Wrench2 x Hex Wrench1 x Drill Bit1 x Washer Note: Manual measurement please allow some errors.