Tough quality professional screwdiver bits. The DeWalt DT71521-QZ 25mm Pz2 in Standard Tic Tac box have a hardened bit core for extra strength durability and are especially suited for repetitive screwdriving tasks. Professional use bits ideal for driving fasteners into wood, metal, plastic and drywall materials Features and Benefits: Especially suited to repetitive screwdriving tasks Hardened bit core for extra strength durability Professional use bits ideal for driving fasteners into wood, metal, plastic and drywall materials Strong and durable screwdriver bits Supplied in a handy plastic tic tac box. Fits the DT70716 T-stak Caddy Additon of the Tstak Caddy makes this set compatible with the TSTAK� storage system for easy in-van and workshop storage. This set includes 2 x25 25mm PZ2 standard bits and comes in a Mini ToughCase.