Specification Brand : TA-VIGOR BulletPoint1 : 【Size&Package】Cutting Edge Diameter : 15.5mm / 39/64"; Shank Diameter : 1/2"; Cutting Edge Length: 82.5mm / 3.25"; Total Length : 152mm / 5.98"; Package includes 1PC 15.5mm reduced shank drill bit. BulletPoint2 : 【Black Oxide Surface】Black oxide treatment adds lubricity and creates small pockets on the surface of the tool that act to hold coolant near the cutting edge. The surface coating can also better protect the reduced shank drill bit sets from corrosion and expand their life. BulletPoint3 : 【Sharper & Hard】Made of High Speed Steel 9341 material, the reduced shank drill bit is hard enough, anti-bending and will not fracture easily. The sharp cutting edge and spiral flutes promote faster as well as preciser drilling. Helping you work more efficiently and get rid of glitches or scrap. BulletPoint4 : 【Reduced Shank】Reduced shank drill bit expand the size range capacity of a portable drill chuck. Common flute and overall length allow minimal adjustment when changing tools. BulletPoint5 : 【Wide Applications】Our reduced shank drill bit has various sizes and can meet your needs for drilling glass, stainless steel, metal and wood materials, etc. They can be clamped to manual and electric drilling tools, widely used in household or processing industries. Color : Black And Gold CustomerPackageType : Standard Packaging CuttingAngleString : 15 degrees ExternallyAssignedProductIdentifier : 7448314669132 ExternallyAssignedProductIdentifier1 : 656003073000 ExternallyAssignedProductIdentifier2 : 0656003073000 ExternallyAssignedProductIdentifier3 : 00697334211648 FinishType : Black Oxide,Oxide GpsrSafetyAttestation : 1 ItemName : TA-VIGOR 15.5mm Reduced Shank Drill Bit, 39/64" Drill Bit High Speed Steel HSS 9341 Black Oxide with 1/2 Inch Straight Shank- Perfect for Drilling Steel,Copper,Aluminum Alloy ItemPackageDimensions_Height : 21.7 centimeters ItemPackageDimensions_Length : 2.3 centimeters ItemPackageDimensions_Width : 8.9 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : reduced-shank-drill-bits Manufacturer : TA-VIGOR Material : High Speed Steel ModelNumber : TW12305H NumberOfFlutes : 2 NumberOfItems : 1 PartNumber : TW12305H ProductDescription : TA-VIGOR 15.5mm Reduced Shank Twist Drill Bits with 1/2 Inch Straight Shank- Perfect for Drilling Steel,Copper,Aluminum Alloy-Made of High Speed Steel HSS 9341 Black Oxide ProductSiteLaunchDate : 2022-09-02T10:16:58.690Z Size : 15.5mm Style : 8PCS SupplierDeclaredDgHzRegulation : not_applicable SurfaceRecommendation : Aluminum,Copper,Steel SurfaceRecommendation1 : Wood SurfaceRecommendation2 : Metal SurfaceRecommendation3 : Plastic SurfaceRecommendation4 : Stainless Steel SurfaceRecommendation5 : Copper SurfaceRecommendation6 : Cast Iron SurfaceRecommendation7 : Iron UnitCount : 1 UnspscCode : 27111700