General description This 185 Piece assorted screwdriver set is part of the Dewalt modular Toughcase accessory range. It comes in a Large ToughCase® ready to fix to the top of your existing Tstak case. The set features Dewalt Black and Gold Drill Bits, designed for metal and multimaterial drilling, and includes a variety of containers for organized storage. Technical specifications Set includes 185 pieces Container sizes: Small Bulk Storage, Small ToughCase®+, Medium ToughCase®+, Large ToughCase®+ Black & Gold Drill Bits for wood, metal, and plastic Speed Tip for faster penetration Extreme Impact Torsion bits with a 15° torsion zone Includes 110 pieces in the large box Drill bit sizes: 2mm, 3mm, 4mm, 5mm, 6mm, 8mm (metal); 5mm, 6mm, 8mm, 10mm, 12mm (masonry); 14mm, 18mm, 20mm, 22mm, 25mm (flat wood) Compatibility and accessories Compatible with TSTAK® storage system Fits the DT70716 T-stak Caddy Includes 6 case dividers Installation Connectable case allows multiple sets to be stacked