$combination auger set 6-25mm 8pc - 6, 8, 10, 13, 16, 19, 22 & 25mm x 200mm long - used in either a hand or power drill at low speeds. machined from high-quality carbon steel, with a pitched screw point for accurate starting & a wide flat spiral for improved stability, straight tracking and fast waste removal. may be used in timber, plywood, mdf and block wood and can be resharpened using a hand file. in an aluminium storage case.