The Klein Tools 2-in-1 Interchangeable Rapi-Drive® Screwdriver offers the convenience of two tools in one. The interchangeable blast finish bit features the most popular tip sizes, eliminating the need to carry multiple drivers. The unique Rapi-Drive® design secures screws in 33-percent less time than a standard straight blade screwdriver. The Klein Tools 2-in-1 Interchangeable Rapi-Drive® Screwdriver offers the convenience of two tools in one. The interchangeable blast finish bit features the most popular tip sizes, eliminating the need to carry multiple drivers. The unique Rapi-Drive® design secures screws in 33-percent less time than a standard straight blade screwdriver. Klein Tools 2-in-1 Screwdriver saves time and effort, especially on long-threaded screws used with switch plates and light fixtures Rapi-Drive™ Screwdriver has crank action handle that spins screws fast with one hand Interchangeable bit holder for quick switching between tip styles and features the most popular tip styles: 3/16-Inch (5 mm) slotted and #2 Phillips Designed for light duty screwdriving. Not intended for high-torque applications The Klein Tools 2-in-1 Interchangeable Rapi-Drive® Screwdriver offers the convenience of two tools in one. The interchangeable blast finish bit features the most popular tip sizes, eliminating the need to carry multiple drivers. The unique Rapi-Drive® design secures screws in 33-percent less time than a standard straight blade screwdriver.