Specification Brand : uxcell BulletPoint : Surface treated high speed steel with 135-degree split point. BulletPoint1 : Size: Bit Diameter: 6.8mm; Flute Length: 58mm / 2.3"; Total Length: 108mm / 4.3"; Shank Diameter: 6.8mm BulletPoint2 : Feature: After using full grinding process, it has stronger cutting ability and longer service life. BulletPoint3 : Material: Cobalt-containing high-speed steel drill bit, high wear resistance and toughness, not easy to break, sharp cutting edge, effectively improving drilling speed. BulletPoint4 : Application: Suitable for processing non-ferrous metals (such as copper and aluminum), non metallic and ferrous metals (such as iron, steel and stainless steel). BulletPoint5 : The advantages of full grinding: High geometric precision, strong cutting ability. Color : 6pcs(4/5/6/8/10/12) CuttingAngleString : 135.0 degrees ExternallyAssignedProductIdentifier1 : 604267654657 ExternallyAssignedProductIdentifier2 : 0604267654657 FinishType : Uncoated GpsrSafetyAttestation : 1 IncludedComponents : 4mm, 5mm, 6mm, 8mm, 10mm, 12mm ItemName : uxcell 6.8mm Drilling Dia Straight Shank High Speed Steel Cobalt Metric Twist Drill Bit for Hardened Metal, Stainless Steel, Cast Iron and Plastic 2pcs ItemPackageDimensions_Height : 12.7 centimeters ItemPackageDimensions_Length : 3.048 centimeters ItemPackageDimensions_Width : 6.35 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : metalworking-and-multipurpose-drill-bit-sets Manufacturer : uxcell Material : High Speed Steel Material1 : Stainless Steel Material2 : Cobalt Material3 : High Speed Steel Material4 : Alloy Steel ModelNumber : a17011600ux0377 NumberOfFlutes : 2 NumberOfItems : 2 NumberOfPieces : 2 PackageLevel : unit PartNumber : a17011600ux0377 ProductDescription : This product is made of high speed steel and cobalt material. After using full grinding process, it has stronger cutting ability and longer service life. Suitable for processing non-ferrous metals (such as copper and aluminum), non metallic and ferrous metals (such as iron, steel and stainless steel). Straight shank works in both keyed and key-less drill chucks. The advantages of full grinding drill bit:High geometric precision, strong cutting ability. Smooth surface finish, long service life. Wider using range (rough processing, finishing, semi finishing), and comes with edge clear function, make processing products have better surface finish.