With the Dewalt DT5547-QZ hss-g Extreme 2 metal drill bits, you drill with immediate precision and full control into alloyed and non-alloyed steel, sheet metal, wood, and plastic. The innovative pilot tip bites instantly on contact without walking, eliminating the need for a center punch and delivering clean, burr-free holes. a tapered web reinforces the drill core to significantly reduce the risk of breakage under heavy loads. In addition, three flat sides on the shank prevent slipping inside the drill chuck. With this 10-piece pack, you keep moving quickly through assembly and workshop tasks without downtime.