uxcell Drill Bit Set, 2.5mm 6mm Titanium Nitride Coated Cobalt High Speed Steel Straight Round Shank Drilling Cutter for Stainless Steel Alloy 12pcs

Drill Bit Set: Cutting edge diameter: 2.5mm / 0.1", 6mm / 0.24"; shank diameter: 2.5mm / 0.1", 6mm / 0.24"; total length: 58mm / 2.3", 90mm / 3.54". Package included: 10pcs x 2.5mm M35 Cobalt High Speed Steel Drill Bits, 2pcs x 6mm High Speed Steel Drill Bits
Wide Applications: Widely used for drilling stainless steel, aluminum alloy, iron, copper, wood and plastic. Suitable lubricant is conducive to cutting or cooling, making cutting easier and improving smoothness, dimensional accuracy, and extending the service life.
Sharp Spiral Flutes: Sharp spiral flutes provide neat and smooth cuts. High cutting edge strength, fast cutting speed. Spiral groove facilitates the export of metal chip. Universal round shank for easier clamping and stable cutting process.
Titanium Nitride Coating: Gold titanium and black nitride dual coating can apply lubricant better for smoother drilling and is more durable and corrosion resistant than the regular black surface. High-speed steel tools have high hardness, good toughness, high wear resistance.
Tips: When using hand-held electric drill, the recommended speed is 100-1000rpm/min; the larger the drilling diameter, the slower the drilling speed. Drill metal with high hardness or foreign substance, the rotational speed should be slower than normal drilling.

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