Specification Brand : Wifehelper BulletPoint1 : Sharp and carbide tip can be reused after grinding. BulletPoint2 : The hole diameter can be adjusted by the distance from the drill bit tip to the center. BulletPoint3 : Can be installed and operated on the electric drill and bench drill. BulletPoint4 : Widely used in wooden board, plastic board, gypsum board, etc. BulletPoint5 : Alloy steel with heat treatment can be used for thin-film plate. Color : Black CompatibleMaterial : Metal ExternallyAssignedProductIdentifier : 6195420560198 ExternallyAssignedProductIdentifier1 : 0783335302635 ExternallyAssignedProductIdentifier2 : 783335302635 FinishType : Nickel ItemName : Wifehelper 30-300mm Adjustable Black Circle Hole Saw Drill Bit Set Alloy Steel DIY Woodworking Tool Wooden Plastic Gypsum Board ItemPackageDimensions_Height : 34.6 centimeters ItemPackageDimensions_Length : 1.8 centimeters ItemPackageDimensions_Width : 18.8 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : hole-saw-sets Manufacturer : Wifehelper Material : Cotton wool ModelNumber : modle PartNumber : usd1k3yrge ProductDescription : Description: 5Pcs 15-35mm Forstner Drill Bits Set Hinge Hole Cutters Wood Working Hole Saw Cutters Specification: Material: carbon steel Bit diameter: 15mm, 20mm, 25mm, 30mm, 35mm Quantity: 5pcs Features: Made of carbon steel, hard and durable. Little noise when openning holes. Cutting holes smoothly, descreasing the resistance and increasing the speed. Easy to install,suitable for the general electric drill tools. Suitable for openning holes on materials such as wood, wooden product, plastic, plywood and so on. Package Included: 5 x Hinge hole cutters More Details: