Do you want to drill and countersink in one action? Then check the Quickbit Drill Countersink Bits from P & N. P & N Quickbit Drill Countersinks are designed to drill a screw pilot hole and countersink in one action. In addition, this four-piece set has been specifically designed to provide quick changeover via the standard 1/4in shanks on each bit. The pilot drills are easily adjusted or replaced by loosening the grub screw on the drill countersinks base. The included extra 16mm (5/8in) countersink bit allows you to deepen / widen the countersunk hole when required. Perfect for all kinds of makers who need a quick drill and countersink solution. Available in 4 different sizes, please select your preferred option from the dropdown. 4G drill countersink 6G drill countersink 8G/10G drill countersink 10G/12G drill countersink Features Drill pilot hole and countersinks in one action 1/4in hex quick change adapters Drills made from high speed steel Suitable for drilling wood, aluminium and plastics 82 degree countersink angles Size: 4G, 6G, 8G/10G, 10G/12G