HARFINGTON Twist Drill Bit 37/64" Dia High-Speed Steel 4341 Metric Drill Bits 5.7" Overall Length with Black & Gold Oxide Coating for Drilling Hard Metals, Stainless Steel, Alloy Steel

About this product

Material: Made of high-speed steel 4341, 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.