Modular, stackable, medium-duty case designed for the secure storage of accessories. Clear lid for easy identification of bits. Use the locking system to connect cases together and securely stack with small, medium, and large Toughcases. TSTAK compatible to keep all accessory kits in one place. Extremely impact-resistant flat wood drill bits feature a tapered lead tip. Tapered outer cutting edges allow for precise bit positioning and a clean hole, even in wood with nails. Thick, sturdy steel shank for added durability. 1/4" shank for easy and slip-free clamping. Fast and precise drilling. Center-point wood drill bits have a center point, two shoulders, and a peripheral cutting edge for quick, clean results. Center-point wood drill bits are particularly suitable for drilling dowel and through holes. Screwdriver bits have optimized tip geometry for a complete fit in the fastener and reduced breakout. The precision-engineered head prevents wobbling and rounding of the screw head. Small storage case included. Contains a drive guide with a retractable sleeve for enhanced stability and control of the fastener. Easy bit removal and storage for the user. Screwdriver bits lock in place to prevent them from falling out when not in use.