Specification Brand : Culnflun BulletPoint1 : [PREMIUM MATERIAL] The twist drill is made from high speed steel, ensuring long-lasting durability. BulletPoint2 : [EFFICIENT DESIGN] Features a straight shank for ease of Operating and milled flutes with a deep cut spiral for fast material removal. BulletPoint3 : [CHIP EXTRACTION] The flutes act as a passageway for chip extraction and coolant entry, preventing chip to tool welding and reducing built-up edges. BulletPoint4 : [VERSATILE USAGE] Suitable for impact applications, ideal for fast drilling in block, masonry, concrete, and more. BulletPoint5 : [COMMONLY USED] Twist drill bits are the most common type for drilling holes with hand operated drills, standalone press, or lathes. ItemName : Culnflun 3mm HSS Long Twist Auger Drill Bit for Fast Drilling Impact Applications Concrete ItemPackageDimensions_Height : 1 centimeters ItemPackageDimensions_Length : 17 centimeters ItemPackageDimensions_Width : 3 centimeters ItemTypeKeyword : extra-long-drill-bits Manufacturer : Culnflun ModelNumber : Culnflunn4vuwt571a NumberOfItems : 1 PartNumber : Culnflunn4vuwt571a ProductDescription : Specification: Brand new and premium quality Product Name: Twist Drill Bit Design: Straight Shank Material: HSS Diameter and total length: 3mm Twist bit, 160mm total length