Ball-style handle design provides exceptional torque and all-day comfort for professional electricians and construction workers during repetitive fastening tasks. Compatible with most 1/4-Inch hex bits longer than 1.5 inches including impact bits, power bits, and specialty bits, eliminating the need for multiple screwdriver handles. Fastbit collar mechanism allows quick bit swapping by simply pulling down collar; no tools needed for quick transitions between different fastener types. Ball bearing locking system automatically secures bits without collar manipulation while providing easy release when needed. Removable double-ended shaft features #2 Phillips and 6 mm Slotted tips.