Specification Brand : AHAFEI BulletPoint1 : Industrial Drill Bits BulletPoint2 : Drill Bit 3D Carbide Bits 3-12mm Cooling Drill Spiral Twist Drill Bit Blue Coating Hole Drill For Metal 1Pcs BulletPoint3 : 1. Center and spotting drills are traditionally used to make a conical hole for a lathe center in order to make a starting point for a standard twist drill, designed to prevent the twist drill from walking. BulletPoint4 : 2. Used for producing center holds in components or work pieces with require machining between centers. BulletPoint5 : 4. Suitable for bicycle repair, assemble furniture, machinery manufacturing, ect. Color : 3.9mm CuttingAngleString : 60.0 degrees ExternallyAssignedProductIdentifier : 9195471305356 ExternallyAssignedProductIdentifier1 : 887861307550 ExternallyAssignedProductIdentifier2 : 0887861307550 IncludedComponents : Drill Bit with 1/2" Shank ItemName : AHAFEI Drill Bit 3D Carbide Bits 3-12mm Cooling Drill Spiral Twist Drill Bit Blue Coating Hole Drill for Metal 1Pcs (Color : 3.9mm) ItemPackageDimensions_Height : 2 inches ItemPackageDimensions_Length : 6 inches ItemPackageDimensions_Width : 4 inches ItemPackageQuantity : 1 ItemTypeKeyword : reduced-shank-drill-bits Manufacturer : AHAFEI Material : High Speed Steel Material1 : Stainless Steel Material2 : Tungsten Steel Material3 : Carbide Material4 : High Speed Steel Material5 : Alloy Steel ModelNumber : D/AMMCO16.50 NumberOfBoxes : 1 NumberOfItems : 1 PackageLevel : unit PartNumber : AHAFEI ProductDescription : Industrial Drill Bits Drill Bit 3D Carbide Bits 3-12mm Cooling Drill Spiral Twist Drill Bit Blue Coating Hole Drill For Metal 1Pcs Product Description: 1.Material:Tungsten steel 2.Coating:Nano Blue 3.Drilling hole diameter:3.0mm to 9.5mm 4.Length: 60-103mm 5.Suit for machining copper,steel,cast iron,stainless steel,mold steel,high speed steel,bearing steel,etc. Package Including: 1pc internal coolant drill ProductSiteLaunchDate : 2023-02-11T10:32:23.372Z Size : 44x35mm Style : 1/2" Shank SupplierDeclaredDgHzRegulation : not_applicable SurfaceRecommendation : Metal,Steel UnitCount : 1 UnspscCode : 20121600