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.