HARFINGTON 10pcs M35 Cobalt Twist Drill Bit 6.8mm(17/64") Dia High-Speed Steel Metric Drill Bit with Titanium Coating for Drilling Hard Metals, Stainless Steel, Alloy Steel, Cast Iron

Material: The cobalt drill bit is made of high-speed steel with added cobalt, which enhances high hardness, good wear resistance, and thermal stability of the drill, suitable for demanding cutting applications.Titanium Coating: Further improves the twist drill bit's wear resistance, cutting performance, and corrosion resistance, ensuring extended tool life and enhanced efficiency in various cutting tasks.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.

• Size - Working Diameter: 6.8mm(17/64 inch) ; Working Length: 57mm / 2.24 inch; Shank Diameter: 6.8mm(17/64 inch); Total Length: 109mm / 4.29 inch
• Long Lasting Material: The cobalt drill bit is made of high-speed steel with added cobalt, which enhances high hardness, good wear resistance, and thermal stability of the drill, suitable for demanding cutting applications.
• Fast Drilling - 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.
• 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.
• 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.