Specification Brand : TA-VIGOR BulletPoint1 : 【Size & Package】Shank diameter: 4mm / 0.16" (approx.); Drill bit diameter: 4mm / 0.16" (approx.); Overall Length: 160mm / 6.3" (approx.); Package includes 2pcs 4mm straight shank drill bit. BulletPoint2 : 【High Speed Steel】Made of HSS material, the extra long drill bit is hard enough, anti-bending and will not fracture easily. The surface coating can better protect the long twist drill bit sets from corrosion and expand their longlife. BulletPoint3 : 【Straight Shank】Round and straight shank is suitable for a wide variety of toolholding systems. Universal flute and overall length allow minimal adjustment during work. BulletPoint4 : 【Double Cutting Edge】 The sharp cutting edge promotes faster as well as preciser drilling. Its spiral flute assure fast heat dissipation, protecting the 4mm long drill bit from high temperature damage and getting rid of glitches or scrap. BulletPoint5 : 【Wide Application】Great for drilling metal like copper and aluminum, plastic, PVC and other precision drilling. Suitable for most electric drills and drilling machines. Color : 24 31 CuttingAngleString : 135.0 degrees ExternallyAssignedProductIdentifier1 : 634301939631 ExternallyAssignedProductIdentifier2 : 0634301939631 FinishType : Titanium GpsrSafetyAttestation : 1 IncludedComponents : Drill Bits ItemDisplayDimensions_Height : 0.56 inches ItemDisplayDimensions_Length : 7.25 inches ItemDisplayDimensions_Width : 2 inches ItemName : TA-VIGOR 2pcs Extra Long Twist Drill Bits 4mm x 160mm Long Drill Bit with 4mm Diameter HSS(High Speed Steel)-Perfect for Drilling Metal, Copper and Aluminum ItemPackageDimensions_Height : 17.0942 centimeters ItemPackageDimensions_Length : 0.889 centimeters ItemPackageDimensions_Width : 13.589 centimeters ItemPackageQuantity : 2 ItemShape : Straight ItemTypeKeyword : jobber-drill-bits Manufacturer : TA-VIGOR Material : High Speed Steel ModelNumber : TK3350BP2 NumberOfFlutes : 1 NumberOfItems : 2 NumberOfPieces : 2 PartNumber : TK3350BP2 ProductDescription : TA-VIGOR 2pcs 160mm Extra Long Drill Bit, 4mm Long Drill Bit with 4mm Drill Diameter-Perfect for Drilling Copper and Aluminum-Made of Strong HSS(High Speed Steel) ProductSiteLaunchDate : 2022-09-02T10:16:01.577Z Size : 4x160mm Style : Drill SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 SurfaceRecommendation : Copper,Steel UnitCount : 2 UnspscCode : 27111700