Unique Bargains Straight Shank Twist Drill Bits 11mm High Speed Steel HSS 4341 with 11mm Shank

Descriptions:
1. High-speed steel straight shank drill bits are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance.
2. Spiral flutes provide neat and smooth cuts. High cutting edge strength, fast cutting speed. Spiral groove facilitates the export of metal chip, take time and effort in operation. Common flute and overall length for minimal adjustment during tool changes.
3. 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.
4. For use in a wide range of stainless steel, aluminum alloy, iron, copper, brass and metal materials. Perfect tool for maintenance departments, machine shops, and other industries.