Specification Brand : Drillco BulletPoint1 : Reduced shank drill bit has a shank that is smaller in diameter than its shaft, permitting drilling with a 1/2" drill chuck BulletPoint2 : Heavy duty nitride surface treatment increases hardness for drilling stainless steel and other hard metals BulletPoint3 : High-speed steel (HSS) provides hardness for wear resistance BulletPoint4 : Black and gold oxide finish resists corrosion and increases the hardness of the drill bit for additional wear resistance BulletPoint5 : Self-centering 118-degree split point penetrates material without a pilot hole BulletPoint6 : Made in the USA Color : Black Oxide Configuration : configuration CustomerPackageType : 1 CuttingAngleString : 118.0 degrees ExternallyAssignedProductIdentifier1 : 045996598049 ExternallyAssignedProductIdentifier2 : 0045996598049 ExternallyAssignedProductIdentifier3 : 00045996598049 FinishType : black and gold oxide GpsrSafetyAttestation : 1 IncludedComponents : 1 twist drill bit ItemName : Drillco 1000N Series High-Speed Steel Nitro Reduced Shank Drill Bit, Black/Gold Oxide Finish, Round with Flats Shank, Spiral Flute, 118 Degree Split Point, 5/8" Size ItemPackageDimensions_Height : 1.778 centimeters ItemPackageDimensions_Length : 15.24 centimeters ItemPackageDimensions_Width : 1.778 centimeters ItemPackageQuantity : 1 ItemShape : Rectangular ItemTypeKeyword : reduced-shank-drill-bits Manufacturer : Drillco Cutting Tools Material : High-Speed Steel Material1 : High Speed Steel Material2 : Blend Material3 : Blend Material4 : Blend Material5 : Blend MfgSeriesNumber : 1000N ModelName : DMD3164JP1 ModelNumber : 1000N140 NumberOfBoxes : 1 NumberOfFlutes : 2 NumberOfItems : 1 NumberOfPieces : 1 PackageLevel : unit PartNumber : 1000N140 Pattern : Solid PowerSourceType : hand_powered ProductDescription : Hegebeck Reduced-Shank Drill Bit Specifications: Material: HSS-4241 Dimensions: Cutting diameter: 32mm/ 1-1/4inches; Shank Diameter: 1/2 inches; Total length: 150mm / 5.9 inches Color: Sliver HRC: 62-63 Description: 1.High-speed steel tool is good for most general purpose applications, featuring a combination of hardness and toughness for wear resistance. 2.Polished treatment adds lubricity. Small pockets on the surface of the tool that act to hold coolant near the cutting edge. 3.When drilling, conditionally add coolant or cutting fluid to cool down to reduce the damage of high temperature to the drill bit and extend the service life of the drill bit. 4.Cutting speed should not be too high, to prevent burning, rate should not be too large, to prevent the drill wear. Package Content: 1 pcs x Reduced-Shank Drill Bit