Specification Brand : S&F STEAD & FAST BulletPoint1 : Step bit made with cobalt high speed steel for superior hrc hardness of 64-66 at high temperatures, with a Titanium Aluminum Nitride coating with hrc hardness of 89 for outstanding service life and heavy duty use to cut extra hard metals BulletPoint2 : One step drill for 9 sizes: 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4", use one uni bit and save the hassle of changing drill bits when cutting different size holes BulletPoint3 : Three spiral flute design in unibit step drill bit for superior cutting properties and controlled and efficient removal of chips BulletPoint4 : Step bits for metal with cbn-ground flutes for extra sharp cutting edges to cut smooth, burr-free holes BulletPoint5 : Clear, laser-engraved measurements on cone drill bit Color : Black CuttingAngleString : 135 degrees ExternallyAssignedProductIdentifier : 05060917980418 FinishType : Titanium Aluminum Nitride GpsrSafetyAttestation : 1 IncludedComponents : Box ItemName : S&F STEAD & FAST Cobalt Step Drill Bit for Metal, Three Spiral Flute, 1/4"-3/4", 1 pc, Heavy Duty Unibit, 1/4" Hex Shank, HSS M35 Steel Step Bit for Sheet Metal, Stainless Steel, Aluminum ItemPackageDimensions_Height : 8.9916 centimeters ItemPackageDimensions_Length : 2.8956 centimeters ItemPackageDimensions_Width : 2.9972 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : step-drill-bits Manufacturer : S&F STEAD & FAST Material : High Speed Steel Material1 : High Speed Steel Material2 : Cobalt Steel ModelNumber : PLT-HKQ-014 NumberOfFlutes : 3 NumberOfItems : 1 NumberOfPieces : 31 PartNumber : PLT-HKQ-014 ProductDescription : S&F STEAD & FAST Unibit step drill bit is made with superior soild high speed steel cobalt TiAlN coating for heavy duty, one piece stepped drill bit 1/4"-3/4" includes 9 sizes: 1/4", 5/16", 3/8", 7/16", 1/2", 9/16, 5/8", 11/16", 3/4", using with cord/cordless drill, works great on most materials, such like wood, plastic, metal, aluminum and other types of sheet metal. The three-flute design provides a faster and smoother cutting, lets the material particles escape easily for a much more clean drilling operation. With each step, you can feel the stepping drill bit stops so you never drill bigger than you need to. The 1/4 inch hex shank makes for easy, convenient, and quick stepper bit switches. The laser-engraved reference marks make it easy to stop on any hole size for your convenience, save your time and efforts to change bits. Warning: Always wear proper personal protection equipments during drilling, including eye glasses, gloves and etc. ProductSiteLaunchDate : 2022-12-02T01:55:03.641Z Size : 1/4-3/4" SupplierDeclaredDgHzRegulation : not_applicable SurfaceRecommendation : Aluminum,Metal,Metals,Stainless Steel,Steel SurfaceRecommendation1 : Plastic SurfaceRecommendation2 : Metal SurfaceRecommendation3 : Stainless Steel SurfaceRecommendation4 : Wood UnitCount : 1 UnspscCode : 27111700