This 110 Piece assorted screwdriver set is part of the Dewalt modular Toughcase accessory range. This set comes in the Large ToughCase� ready to fix to the top of your existing Tstak case. It also features the Dewalt Black and Gold Drill Bits The DEWALT ToughCase+ Accessory Storage solutions have premium features to help keep drilling and fastening bits organized. The system includes four container sizes; the Small Bulk Storage Container, Small ToughCase�+ Container, Medium ToughCase�+ Container, and Large ToughCase�+ Container for unlimited configurations. The ToughCase�+ Containers feature newly-designed bit storage, with a unique bit bar position that allows for easy removal of bits. Clear lids let users see what's in the case at a glance. In addition, the Small, Medium and Large ToughCase�+ Containers include a proprietary latch system to connect to each other for optimized storage space. The Small Bulk Storage Container fits into each of the units as well, and helps loose materials stay organized. Black Gold Drill Bit Features Black Gold Drills for Metal and Multimaterial Drilling - Drills into wood, metal and plastic. No spin shank which eliminates bit slippage, provides positive lock on chuck, and ensures clean and accurate holes. Tough Core: twice as strong core for increased durability and reduced shank breakage. Optimised helix angle for reduced pull through and a 70% reduction in breakthrough torque. Features Speed Tip: optimised geometry which penetrates material faster with aggressive web design on the tip. DEWALT Black Gold HSS Drill Bits have a speed tip and a tough core for increased durability. The bits also incorporate a no spin shank that eliminates the frustration of the bit spinning in the chuck. Impact Torsion Bit Features DeWalt Extreme Impact Torsion bits with stand the high speed and torque of Impact Drivers, so your bit can keep up with you, even under pressure The magnetic