Specification Brand : KATUR BulletPoint1 : [Twist Drill Bit] Titanium coated HSS drill set with 1/4" round shank hardness and durable, including 13 different sizes: 1.5/2.0/2.5/3.0/3.2/3.5/4.0/4.5/5.0/5.5/6.0/6.5/8.0/10mm. BulletPoint2 : [Two flutes design] Two flutes design helps clear chips faster and debris away from the bit, decreasing friction and heat. BulletPoint3 : [Effectiveness] 1/4 inch round shank fits into all power tools more easily and securely, specially for locking into quick change chuck. BulletPoint4 : [Suit for] Twist Drill Bit roller forged and sharpened edges provide fast penetration, suitable for repair, automotive, industrial and construction use. 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 : gray CuttingAngleString : 135.0 degrees ExternallyAssignedProductIdentifier : 4026271279163 ExternallyAssignedProductIdentifier1 : 4026271279132 ExternallyAssignedProductIdentifier2 : 04026271279132 FinishType : Titanium GpsrSafetyAttestation : 1 IncludedComponents : Drill bit. ItemName : KATUR 99PCS Titanium Twist Drill Bit Set Round Shank High Speed Steel Quick Change Regular Drilling Tools for Wood Plastic Aluminum Alloy 1.5-10mm ItemPackageDimensions_Height : 15 centimeters ItemPackageDimensions_Length : 2.9 centimeters ItemPackageDimensions_Width : 10.1 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : wood-drill-bit-sets Manufacturer : KATUR Material : High Speed Steel ModelNumber : 1664504 NumberOfFlutes : 2 NumberOfItems : 10 NumberOfPieces : 4 PackageLevel : unit PartNumber : BT-0070 ProductDescription : Features: Provide safe drilling start without pre-punching. Perfect for DIY, home use and general building, engineering using. A drill bits holder with size index is included in the set for easy storage and organizing. The cutting edge is hardened and honed for sharpness, chatter-free design with staggered cutting teeth ensure the precise countersinking and hole smooth clean. Suitable for wood, plank, plastic, aluminium plate or sheet iron.