Harfington Twist Drill Bit 9mm Titanium Coated (HSS-E) M42 High Speed Steel 8 Percentage Cobalt Straight Shank for Stainless Steel Aluminum Alloy Metal

Material - M42 steel is a super-hard cobalt high-speed tool steel containing 8% cobalt, with good toughness, high wear resistance, high cutting efficiency, and good hot hardness; Nanoscale gold titanium coating can apply lubricant better for smoother drilling and is more durable and corrosion resistant.

Features - Sharp cutting edge provides fast, neat and smooth cuts; The spiral groove facilitates the export of metal chips, saving time and effort in operation; Chamfered shank design for easier clamping and less slippage during use.

Applications - The straight shank drill bits are widely used for drilling hardened steel, titanium alloy, stainless steel, copper, aluminum, cast iron, and other metal materials; Do not drill quenched and tempered materials.

Notes - Choose the right lubricant can facilitate cutting or cooling, make cutting easier, and improve dimensional accuracy; Please pay attention to the speed adjustment when using the electric drill; The larger the drilling size, the slower the speed requirement.