Compact Screwdriver 6 V. This tool is widely used in screwing. The nickel battery gives strength and power to finish the tasks you need. Anti-Slip comfort grip provides increased comfort and control. The compact size enables easy screwdriving in all areas. Battery bar wrench includes 4 AA alkaline 1.5V per cell. Baby screwdriver bits:(1/4"x 50mm) PH1, PH2,PH3, PZ1, PZ2, PZ3, SL6, SL8, SL10, T10, T20, S1, S2, S3.