Specification Brand : OSG BulletPoint1 : Bottoming straight-flute tap can reach to the bottom of a blind hole to cut threads BulletPoint2 : High-speed steel (HSS) provides hardness for wear resistance BulletPoint3 : Nitride/black oxide finish combines all the benefits of nitride, including increased durability, with the lubricity of black oxide BulletPoint4 : HIGH SPEED STEEL: Easily carried and stored with good performance,spiral tap is manufactured by high speed steel materials. BulletPoint5 : COBALT CONTAINING: Cutting keeps high strength depends on cobalt containing 5%,meanwhile,cobalt containing high speed steel can significantly improve wear and cutting performance of steel. Color : Gold ItemName : Straight Flute Bottom Tap, 1/4-20 UNC ItemPackageDimensions_Height : 0.508 centimeters ItemPackageDimensions_Length : 7.62 centimeters ItemPackageDimensions_Width : 1.27 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : hand-threading-taps Manufacturer : OSG Tap And Die Material : HSS (High-Speed Steel) ModelName : Eujgoovhc2o4m16be ModelNumber : 1600207 NumberOfItems : 1 NumberOfPieces : 1 PartNumber : 1600207 ProductDescription : Specification: Item Type: Screw tap Material: High speed steel Color: Gold and silver Size: Cutter Diameter: Approx. 18mm / 0.7in Blade Length: Approx. 42mm / 1.7in Shank Diameter: Approx. 11mm / 0.4in Total Length: Approx. 111mm / 4.4in Tooth Distance: Approx. 2.5mm / 0.1in Application: Suitable for processing stainless steel, steel plate, copper, SK601, MK80 alloy steel, die steel, iron alloy and other metals