Product details : DEWALT DT5044-QZ EXTREME METAL DRILL BIT 4.5MM
The tip of EXTREME 2? drills pierces immediately on contact with the material for clean, precise holes (diameters 4.8mm and over only). Innovative tapered core shape reduces risk of breakage. The 3-flat anti-slip shank eliminates slippage in the chuck (diameters over 5.0mm only).