The M42 steel is an ultra-hard high-speed steel with a cobalt content of 8%, with good toughness, high abrasion resistance, efficient cutting behaviour and good hot hardness (retains the hardness even at high temperatures of the cutting edge).
The nanoscale gold titanium coating can apply the lubricant better, making it more durable and corrosion resistant. It improves hardness, abrasion resistance and significantly reduces the coefficient of friction. Fast, clean and smooth cuts thanks to the sharp edge. The spiral groove supports the export of metal shavings, thus reducing time and effort in operation. The beveled shaft ensures easy clamping and reduces slipping during use.
The twist drill bits are used for drilling high carbon steel, titanium alloy, stainless steel, copper, aluminium, cast iron and other metallic materials. Do not drill hardened and tempered materials.
Can be used for CNC, precision drill, bench drill, medium and high power hand drill. The better equipment, the higher the processing hardness and the higher the performance. With proper use, the service life of twist drills can be greatly extended.
Note: The right lubricant makes cutting or cooling easier, simplifies machining and increases the precision of measurements. Due to the high speed of the electric hand drill, make sure that the speed is adjusted when drilling. As the size of the bore increases, the speed becomes slower.