DeWALT DT50 Series HSS-R Twist Drill Bit, 4.5mm Diameter, 80 mm Overall

Up to 4X faster than conventional HSS Drills
Cleaner, more accurate, burr-free holes due to recessed cutting wings
Unique metal tip starts cutting on contact eliminating walking (3.2mm and above)
3 flat shank (5.0mm and above)
12.0mm and above have a reduced shank (11.4mm dia)
Suitable for Steel, Alloys, Thin Materials, Wood & Plastics

Drill Bits & HSS/Masonry Sets

Metalworking drills.