Specification Brand : KATUR BulletPoint1 : [Twist Drill Bit] Made of M35 cobalt high-speed steel with chatter-free design for capability and durability, including 5 sizes: 4/5/6/8/10mm. BulletPoint2 : [Two flutes design] Two flutes design helps clear chips faster and debris away from the bit, decreasing friction and heat efficiently. BulletPoint3 : [Used with] Can be used with hand held manual drills and portable or stationary machines. BulletPoint4 : [Suit for] Twist Drill Bit is suitable for aluminum, iron, steel, stainless steel and other metal hole operation. 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/Beige CuttingAngleString : 135.0 degrees ExternallyAssignedProductIdentifier1 : 3221912112538 ExternallyAssignedProductIdentifier2 : 03221912112538 ExternallyAssignedProductIdentifier3 : 00885911096119 FinishType : Hss GpsrSafetyAttestation : 1 Hazmat : auto-grounding IncludedComponents : Wooden dowel/drill set IncludedComponents1 : Handtools IncludedComponents2 : Pliers & Cutters IncludedComponents3 : Nail Pullers ItemName : KATUR Impact Drill Bit Set Twist Drill Set Assortment 5PCS Extension Drill Set for Aluminum, Iron, Steel, Stainless Steel and Other Metal Hole Operation.(4/5/6/8/10 mm) ItemPackageDimensions_Height : 5 centimeters ItemPackageDimensions_Length : 10 centimeters ItemPackageDimensions_Width : 5 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : wood-drill-bit-sets Manufacturer : KATUR Material : High Speed Steel Material1 : High Speed Steel Material2 : Alloy Steel MfgSeriesNumber : L114 ModelNumber : 11454170006 NumberOfFlutes : 2 NumberOfItems : 1 NumberOfPieces : 6 PackageLevel : unit PartNumber : BT-5331 ProductDescription : Features: Split Point Drill Angle to guarantee the best self-centering and positioning and drill smooth and quicker than normal point angle. The cutting edge is hardened and honed for sharpness, chatter-free design with staggered cutting teeth ensure the hole smooth clean. A drill bits holder with size index is included in the set for easy storage and organizing. Suitable for aluminum, iron, steel, stainless steel and other metal hole operation.