Specification Brand : KATUR BulletPoint1 : [Step Drill Bit] The step drill bit set includes international sizes:4/6/8/10/12/14/16/18/20/22/24/26/28/30/32mm, replacing 15 individual drill bits. BulletPoint2 : [Durability and sharpness] High speed steel with titanium coating improves durability and sharpness performence, reducing the friction and cooling the bit. BulletPoint3 : [Stable and soomth] Small bits have hex shank to prevent slip during the rotation.Two-flute design provides faster, smoother cutting, provided with small pressure. BulletPoint4 : [Suit for] The step drill bit is suitable for punch holes through sheet metal, steel plate, aluminum plate, brass or wood. BulletPoint5 : [Buy with Confidence] We offer "TWO YEAR" warranty on item(s) that confirm to be manufacturer defect.We'll respond within 24 hours on weekdays.(Please clamp the shaft in right place and necessary protective measures in woodworking processing.) Color : Black CuttingAngleString : 135 degrees ExternallyAssignedProductIdentifier1 : 039564191688 ExternallyAssignedProductIdentifier2 : 0039564191688 ExternallyAssignedProductIdentifier3 : 00039564191688 FinishType : Titanium GpsrSafetyAttestation : 1 IncludedComponents : TMS000266 ItemName : KATUR Step Drill Bit Large Titanium HSS Step Cone Drill Bit Hole Cutter Set Hex Shank Fluted Edge Step Drill 15 Sizes 4-32mm ItemPackageDimensions_Height : 12.1 centimeters ItemPackageDimensions_Length : 3 centimeters ItemPackageDimensions_Width : 9.5 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : step-drill-bits Manufacturer : KATUR Material : High Speed Steel ModelNumber : TMS000266 NumberOfFlutes : 2 NumberOfItems : 1 NumberOfPieces : 1 PackageLevel : unit PartNumber : BT-5316-1 ProductDescription : Features: Titanium coated to reduce friction and heat. High-speed steel step drill, nice quality and durable. Perfect for home repairs and light jobs to drill a soomth hole. Suitable for punch holes through sheet metal, steel plate, aluminum plate, brass or wood. This drill bit set includes 4/6/8/10/12/14/16/18/20/22/24/26/28/30/32mm diameter, which meet your different needs perfectly.