Highly robust nutsetter features extended torsion zone, able to withstand the high power of impact drivers for long-lasting work. Optimised, heat-treated S2 modified steel provides extra-tough endurance for high performance. Click-fitting slots enable easy replacement of old packs with individually purchased packs for a fully customised collection. Ideal for heavy duty applications such as plant installations or heavy industrial work. ¼" external hex shank for use with impact drivers, drill drivers and screwdrivers.