DeWalt DT5042QZ Extreme 2 Metal Drillbit 4.0 x 75mm

EXTREME 2™ Metal tip starts drilling on contact eliminating walking for clean, accurate holes (diameters 4.8mm and above only).
-Innovative tapered web greatly reduces breakage.
-No-Slip shank with 3 flats eliminates slipping in the chuck (diameters 5.0mm and above only).
-Permanent size markings located above the shank for increased visibility
-The NEW EXTREME 2™ Metal drill bit designed to maximise drill performance offers:
-Faster drilling - up to 4x faster than standard HSS-R drill bits.
-Increased durability - up to 50% stronger than standard HSS-R drill bits.
-Cleaner, more accurate, burr-free holes due to recessed cutting wings.
-Gold Ferrous Oxide coating prevents overheating for longer bit life.

Applications
Suitable for portable drilling of steel, alloyed and non-alloyed up to 900N/mm²
For drilling sheet or thin materials (suitable for use in wood and plastics).