The 51 piece faithfull mixed drill accessory set is an excellent addition to any toolkit contains a selection of the most commonly used drill types and screwdriver bits for use with all types of drills helping make light work of many diy projects around the home titanium hss drill are suitable for use on plastics and non ferrous metals and many be use in all types of hand and power drills contains6 x flat bits 10 13 16 19 22 25mm6 x hss brad point wood drill bits 3 4 5 6 8 10mm5 x tct maso