Specification Brand : HARFINGTON BulletPoint1 : Size - Working Diameter: 15mm / 0.59-inch; Shank Diameter: 10mm / 0.39-inch; Working Length: 80mm / 3.15-inch / 80 mm; Total Length: 150mm / 5.9-inch. BulletPoint2 : Material - Made of high-speed steel 6542, with higher hardness and good wear resistance, impact resistance and heat hardening, and is suitable for cutting workpieces with larger size and heavier load. BulletPoint3 : Feature - The fully ground spiral groove design of the metal drill bits can quickly remove debris, reduce friction and heat, and drill faster. The 135 ° straight shank split point reduces walking on the working face, making drilling accurate and easy. BulletPoint4 : Application - Twist drill is suitable for hardened materials and hard metals, such as stainless steel, mould steel, alloy steel, cast iron, aluminum alloy, copper and hard plastics, and also suitable for soft materials like wood. BulletPoint5 : Note - Please note that these small drill bits are not suitable for glass, tile, wall, stone or ceramic materials, pay attention to speed, pressure, and heat control when drilling. Appropriate use of cutting fluid or oil for cooling and lubrication can extend the service life of the drill. Color : colorful ExternallyAssignedProductIdentifier : 7546664474656 FinishType : Stainless Steel IncludedComponents : N ItemName : HARFINGTON 15mm Twist Drill Bit 6542 High-Speed Steel, 10mm Tri-Edge Shank, Black Oxide Coated, 135° Point for Metal & Woodworking ItemPackageDimensions_Height : 1.18 inches ItemPackageDimensions_Length : 6.69 inches ItemPackageDimensions_Width : 2.36 inches ItemPackageQuantity : 1 ItemTypeKeyword : long-length-drill-bits Manufacturer : HARFINGTON Material : Tungsten Steel ModelName : Jonlakio0zc7pynsq ModelNumber : Gaoxyzthyyh1bisx3vk NumberOfItems : 1 NumberOfPieces : 1 PartNumber : htf240618hh000090 ProductDescription : Material: Made of high-speed steel 6542, with higher hardness and good wear resistance, impact resistance and heat hardening, and is suitable for cutting workpieces with larger size and heavier load. Black and Gold Coating: The black and gold coating enhances the twist drill's wear resistance and heat dissipation properties, reducing friction and extending the tool's lifespan. Features: Can take into account a variety of models, hand drill, percussion drill, lithium drill, and bench drill can be adapted, effectively for precision drilling tasks on various workpieces. Applications: Jobber drill is used for drilling through hard materials such as stainless steel, alloy steel, cast iron, aluminum, copper, wood, malleable iron, aluminum, plastic, and other metals commonly encountered in machining applications. Note: Use proper speed, pressure, and heat control when using these drill bits to maintain efficiency. In the drilling process, the appropriate use of cutting fluid or oil for cooling and lubrication, to extend the service life of the drill.