Specification Brand : uxcell BulletPoint1 : Specifications: Drilling dia.: 35mm and 40mm; shank size: 8mm and 9mm; total length: 80mm. Round shank, cemented carbide cutter and solid hardened steel body. BulletPoint2 : Applications: Can be used for drilling holes on wood and plastic products, furniture, door hinge. Used on cutting wood, plywood, solid wood boards, MDF, plastics, fiberglass etc.. BulletPoint3 : Features: Tungsten carbide cutting tip with special heat treatment for sharp cutting edge, high hardness, non-burrs and durable use. Arc curve design head for easy chip-removal, more efficient perforation. BulletPoint4 : How To Use: Suitable for bench drill, vertical drilling machine, CNC carving machine. Processing hardwood or other hard materials should be injected with water to improve the quality and accuracy of drilling, and extend the life of the hole opener. BulletPoint5 : Tips: Maximum speed: 1200rpm. Used on desktop (fixed) equipment, and can NOT be used on handheld power tools (such as hand drill or electric drill). Can not drill metal and non-ferrous metal. To avoid causing damage, be sure no nails or other metal objects in wood before drilling. The cutting edge and tip of the opener should be sharpened in time. Color : Metallic Silver CuttingAngleString : 90 degrees ExteriorFinish : Wood ExternallyAssignedProductIdentifier : 9003077107147 FinishType : Uncoated IncludedComponents : Forstner drill bit ItemName : uxcell 35mm and 40mm Forstner Drill Bits Set, Tungsten Carbide Wood Hole Saw Auger Opener Woodworking Hinge Hole Drilling Boring Bit Cutter Gray with Case ItemPackageDimensions_Height : 2.36 inches ItemPackageDimensions_Length : 4.72 inches ItemPackageDimensions_Width : 2.36 inches ItemPackageQuantity : 1 ItemShape : Round ItemTypeKeyword : forstner-bits ItemTypeName : Forstner drill bit LockType : Cylindrical Manufacturer : uxcell Material : Carbide Material1 : Carbide Material2 : Carbon Steel Material3 : Alloy Steel MetalType : Alloy Steel ModelName : Forstner drill bit ModelNumber : f22062300ux1610 PackageLevel : unit PartNumber : f22062300ux1610 ProductDescription : Features: Higher efficiency with the 3 teeth cutter head. It is more accurate and safer to use these drill bit sets in a drill press. The head is good at removing the debris and working efficiently with radian curved design. The tip is specially designed to cut through hole cleanly, great for boring concealed hinges and door locks. This Forstner Drill Bit is high hardness, wear resistance, good toughness, heat and corrosion. Applicable to various gypsum, plastic, wooden board, solid wood, artificial wood, indispensable woodworking gadget. Solid and not easy to break, suitable for platform drilling equipment such as bench drill, vertical drilling machine, CNC carving machine. Specifications: Product Name: Forstner Drill Bit Material: Carbide Drilling Diameter: 35mm / 1.38 inch,40mm / 1.57 inch Shank Diameter: 8mm / 0.31 inch,9mm / 0.35 inch Total Length: 80mm / 3.15 inch Package Contents: 1 x 35mm Hole Saw Bit 1 x 40mm Hole Saw Bit 2 x Plastic Package BoxWarning Tips: The temperature of these materials: wood, plastic, plywood etc. will get a kind of high when using this drill bit, please add some WATER or COOLANT to avoid them from getting smoke.