Specification Brand : Drill America BulletPoint1 : SDS Carbide Tipped Drill Bits are designed for drilling stone or concrete BulletPoint2 : Carbide-tipped tools feature cutting edges of carbide for wear resistance and a steel shank for toughness BulletPoint3 : Premium SDS Drill Bits are auto-weld manufactured on first-class German and Swiss equipment with a Japanese-manufactured carbide-tip BulletPoint4 : 4-Flute Cross Tip vibrates less and makes rounder holes than standard SDS bits BulletPoint5 : Wide 4-Flute Cross Tip allows for faster dust removal and reduced heat producing more holes than standard SDS bits ExternallyAssignedProductIdentifier1 : 887861321952 ExternallyAssignedProductIdentifier2 : 0887861321952 FinishType : Black Oxide IncludedComponents : Drill America ItemName : Drill America SDS4F51612 SDS4F Series 5/16-Inch x 12-Inch SDS-Plus 4-Flute Cross Tip Hammer Bit Drill Bit ItemPackageDimensions_Height : 2 inches ItemPackageDimensions_Length : 12 inches ItemPackageDimensions_Width : 4 inches ItemPackageQuantity : 1 ItemTypeKeyword : drill-and-tap-sets Manufacturer : Drill America Material : Carbide Tipped ModelName : Jinlorion2k8z6svueg ModelNumber : SDS4F51612 NumberOfBoxes : 1 NumberOfFlutes : 2 NumberOfItems : 1 PackageLevel : unit PartNumber : SDS4F51612 ProductDescription : Condition: Brand New Item Type: Taper Drill Sleeve Material: High Speed Steel Model: None Use: CNC Fixture Accuracy: 0.015mm / 0.0006in Hardness: 50 HRC Reducing Size: MT3-MT4