Specification Brand : MACXCOIP BulletPoint1 : 10 Step Sizes: The bit comes with 10 sizes so you can drill up to 10 holes(3/16", 3/8", 1/2", 5/8", 3/4", 7/8", 1", 1-1/8", 1-1/4", 1-3/8") with different diameters, save the time and energy of replacing the drill bit and improve your drilling efficiency BulletPoint2 : HSS Titanium Coating: The set is made of industrial grade materials and HSS construction with a titanium coating to help with durability. The wobble-free design and staggered cutting teeth ensure precise hole alignment and smooth hole cleaning BulletPoint3 : Double Flute: Double-Fluted design keeps the step drill stable and provides faster cutting and drilling, while minimizing the scattering of steel chips and prolonging the service life BulletPoint4 : Clear Scale: The unique black area and laser engraving logo can quickly and accurately tell you the drilling size, making it more convenient and accurate for you to drill BulletPoint5 : Application Scope: Designed for drilling on steel sheets up to 0.2 in., acrylic, PVC and wooden boards up to 0.2 in BulletPoint6 : DEDICATED CUSTOMER SERVICE: While our products undergo stringent quality inspections, unforeseen issues caused by accidental factors may occur. In such cases, we are committed to providing professional customer service. If you encounter any quality problems, please contact us via Amazon, and we will promptly replace the defective item with a new one. CustomerPackageType : Standard Packaging CuttingAngleString : 135.0 degrees ExternallyAssignedProductIdentifier1 : 719209435307 ExternallyAssignedProductIdentifier2 : 0719209435307 ExternallyAssignedProductIdentifier3 : 00647096809584 FinishType : Titanium GpsrSafetyAttestation : 1 IncludedComponents : step drill bit set ItemName : MACXCOIP Step Drill Bit Set, 3/16" to 1-3/8", 3/8“ Hex Shank High Speed Steel Step Drill Bit for Stainless Steel, Metal, Aluminum, Copper, Wood, PVC ItemPackageDimensions_Height : 12.7 centimeters ItemPackageDimensions_Length : 3.7 centimeters ItemPackageDimensions_Width : 3.9 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : step-drill-bits Manufacturer : MACXCOIP Material : High Speed Steel Material1 : Stainless Steel Material2 : Cobalt Steel Material3 : High Speed Steel Material4 : Alloy Steel ModelNumber : T000185152A NumberOfFlutes : 2 NumberOfItems : 1 NumberOfPieces : 10 PackageLevel : unit PartNumber : HSS-1/4-1-3/8 ProductDescription : MACXCOIP HSS-1/4-1-3/8 Step Drill Bit Set ProductSiteLaunchDate : 2024-06-03T09:10:07.270Z Size : 1/4"-1-3/8"(HSS) Style : M35 Cobalt 1/4" to 1-3/8" SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredDgHzRegulation1 : not_applicable SupplierDeclaredDgHzRegulation2 : not_applicable SupplierDeclaredDgHzRegulation3 : not_applicable SupplierDeclaredDgHzRegulation4 : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 SurfaceRecommendation : Aluminum, Metal, Wood, Copper, Stainless Steel, Polyvinyl Chloride UnitCount : 1 UnspscCode : 27111700