Specification Brand : OSTSOYYD BulletPoint1 : M35 Cobalt FOUR FLUTE STEP DRILL BIT:High Performance M35 Cobalt Material: Made from M35 cobalt, these drill bits contain approximately 5% cobalt. This high - speed steel alloy offers excellent wear resistance, high hardness, and red hardness. It cuts faster and lasts longer than standard M2 steel, ensuring efficient and long - lasting performance during drilling operations BulletPoint2 : Step Drill Bits Four Flute Design: The four flute construction provides small chip loads and enables quicker chip removal. This not only improves the drilling speed but also helps in maintaining the accuracy of the hole. The flutes are precision - ground, maximizing accuracy and efficiency along the full working surface of the bit BulletPoint3 : TiAIN Coating and Large Cutting Angle: The TiAIN (Titanium Aluminum Nitride) coating enhances the bit's hardness and wear resistance, protecting it during high - speed and continuous use. Additionally, the large cutting angle allows for self - centering and quick penetration with less pressure, reducing the risk of "walking" or "wandering" during drilling, and no center punch is needed BulletPoint4 : Exceptional Drilling Capability: 4 size Includes 1/4",7/8",1-2/16",1-3/8" Our step drill bits are engineered to handle a wide range of materials with ease. Whether you're working on stainless steel, aluminum, wood, or plastic, these bits can drill precise holes, making them perfect for various DIY and professional projects BulletPoint5 : Reliable Customer Service: We are committed to providing top - notch customer service. If you have any questions or issues regarding our step drill bits, our dedicated support team is ready to assist you. Your satisfaction is our priority, and we strive to ensure you have a great experience with our products BulletPoint6 : 【3/8"HEX Shank︱1/4" Hex Shank】 Fits into power tools chuck securely and eliminates slip. 7/8" Step Drill: 3/8" Tri-Flat Shank; 1/2" Unibit:1/4" Hex Shank CuttingAngleString : 118.0 degrees ExternallyAssignedProductIdentifier1 : 711523363533 ExternallyAssignedProductIdentifier2 : 0711523363533 FinishType : Titanium GpsrSafetyAttestation : 1 IncludedComponents : Step Drill Bits ItemName : Step Drill Bits M35 Four Spirl Flute Cobalt Step Drill Bits Set 1/4"-1-3/8" (4 Sizes ) Wear-Resistant TiAlN Coated,1/4" Hex Shank Drill for Metal, Stainless Steel, Aluminum, Plastic ItemPackageDimensions_Height : 1 inches ItemPackageDimensions_Length : 5 inches ItemPackageDimensions_Width : 4 inches ItemTypeKeyword : step-drill-bits Manufacturer : OSTSOYYD Material : Cobalt Steel ModelNumber : Step Drill Bits NumberOfFlutes : 2 NumberOfItems : 1 PartNumber : JTZ-(14-138) ProductDescription : M35 Cobalt Step Drill Bit, Four Spiral Flute Unibit Step Drill Bit (1/4"-3/4") Wear-Resistant TiAlN Coated, 1/4" Hex Shank for Metal, Carbon Steel, Stainless Steel, Wood, Plastic ,Four Spiral Flute Cobalt Step Drill Bit, 1/4" Hex Shank Impact Ready Bit for Hard Metal, Stainless Steel, Cast Iron ProductSiteLaunchDate : 2024-12-03T07:00:49.997Z Size : 1/4"-1-3/8" SkipOffer : 1 SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 SurfaceRecommendation : Aluminum,Copper,Metal,Plastic, Stainless Steel, Steel SurfaceRecommendation1 : Iron SurfaceRecommendation2 : Metal SurfaceRecommendation3 : Co SurfaceRecommendation4 : Stainless Steel UnitCount : 1 UnspscCode : 27111700