12pcs jobber drill bits 5mm black nitride & gold titanium coated HSS twist drill bits for stainless steel aluminum alloy metal

M2 High-Speed Steel Drill Bit - The M2 high-speed steel drill bits, with a hardness of HRC64-66, provide excellent heat resistance and durability. They offer precise cutting performance, clean holes, and minimal burrs.

Black & Gold Finish - The dual coatings of black nitride and gold titanium not only enhance lubrication for smoother drilling but also increase durability and corrosion resistance. The sharp cutting edges ensure neat cuts, while the large spiral grooves help in removing metal chips efficiently.

Wide Applications - These drill bits are suitable for creating holes in various materials such as stainless steel, cast iron, A3 steel, carbon steel, aluminum alloy, copper, wood, and plastic. They are best used on metals with a hardness lower than HRC38, excluding quenched metals, tiles, concrete, walls, and stones.

Tips for Usage - To achieve optimal results, use an appropriate lubricant to reduce friction and heat build-up. It is crucial to control the drilling speed, starting slow and gradually increasing it for larger diameter holes. Additionally, ensure the drill bit is securely fastened, perpendicular to the work surface, and apply steady pressure during operation.

Specifications - The twist drill bits have a cutting edge diameter of 5mm, a round shank diameter of 5mm, a cutting edge length of 59mm, and an overall length of 85mm. The split point angle is 135 degrees, allowing for quick penetration with minimal pressure. These drill bits are compatible with handheld drills, drill presses, bench drills, machining centers, and CNC lathes.

In conclusion, the M2 High-Speed Steel Drill Bit is a versatile and reliable tool that offers excellent performance, durability, and precision in drilling various materials. Its black & gold finish enhances lubrication and prolongs tool life, making it an essential addition to any workshop or toolbox.

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