The 9.6-volt Pivoting Screwdriver model R81030 is powerful enough to handle most on-the-job fastening tasks, be it driving screws or tightening bolts. It is lightweight with a compact pivoting body, allowing one to use it as a straight screwdriver or in pistol grip orientation for maximum comfort and control. It features a die cast torque adjustment ring with 16 settings for driving screws to just the right dept without stripping. It comes with a tough die cast gearbox for greater job site reliability and dependability. The variable speed reversible switch allows for easy starts for driving or drilling and its ergonomic two-finger switch provides comfort and ease of operation. The overmold handle also makes for more comfortable operation. The 1/4-inch Quick Coupler makes for fast, easy bit changes.