24 piece set for drilling wood steel masonry and screw driving the set comprises of 24 of the most commonly used accessories for the impact drill tool bod suitable for drilling wood steel masonry and screw driving accessory kits have been designed to click into blucave single drawers for convenient storage in blucave portable cabinets or shelf technical specifications 10 x wood and steel 15 2 3 4 5 6 7 8 9 10 mm 5 x wood 4 5 6 7 8 mm 6 x masonry 4 5 55 6 7