COMPACT AND LIGHTWEIGHT Provides access to tight spaces. INLINE GRIP For added comfort and control. ATTACHMENT COMPATIBLE Designed for compatibility with future BLACK+DECKER attachments. POWERFUL OPERATION Supplies 180 rpm and 35 in-lb of torque for many household applications. 4V MAX* LITHIUM ION BATTERY Rechargeable for cordless convenience. INCLUDES (1) BDCS20C 4V MAX* cordless screwdriver.