QWORK 2 Pack 20mm Reduced Shank Drill Bit with 1/2" Shank, High Speed Steel Shank Split Point Tip HSS Twist Flute Spiral Flute Drill Bit Black Oxide for Aluminum Plate Copper Wood Stainless Steel
High Speed Steel Cutting Tools: The twist drill bit has high hardness, good toughness and high strength. Black nitrided coating provides excellent wear, corrosion and high temperature resistance. Provides better lubricant application for smoother drilling.
Spiral Flutes: Speed spiral design, three times faster than standard drills, sharp and twisted flutes will provide fast, neat, smooth cuts. Universal groove and overall length allow for minimal adjustment when changing tools.
Practical Tips: For clean, precise holes, water is needed for lubrication and cooling when drilling in metal. Appropriate lubricant is beneficial to cutting or cooling, improves dimensional accuracy and prolongs tool life.
Wide Range of Uses: Widely used for drilling stainless steel, aluminum alloy, cast iron, high carbon steel, copper, hard wood and hard plastic. Reduced Shank Drills Expand Portable Drill Chuck Size Range.