**Drives screws up to 4x faster NO-LOAD 300 rpm for high-speed driving IDEAL FOR free-run or mechanical screwdriving RECHARGEABLE Integrated 4V MAX* Lithium Ion Battery and Micro USB charging port with USB cable (wall adapter not included) COMPACT POWER: 40 mm-length (like a standard manual screwdriver) to make getting into tight spaces it easy to and storage even easier EASE AND RELIABILITY: Simple push button operation and a quick-change locking collet to hold bits securely. Also includes 3-stage battery charge indication to prevent unexpected interruptions WORK SURFACE VISIBILITY: LEDs activate automatically when in-use The CRAFTSMAN 4V Screwdriver delivers simple push button, power assisted speed in one of the most compact integral battery designs available. The 300 RPM (no load) motor drives screws 4x times faster than a standard fixed screwdriver making it perfect for free run, low-torque applications including electronics repair and installing switch plates. When additional powered is required, the motor engages an automatic spindle lock that stabilizes and protects the gears for manual torqueing. The 1.5Ah li-ion battery offers long-lasting reliability, with USB charging and 3 stage LED battery status indication. LED lights activate automatically when in-use improving visibility to working surface. The set includes (6) 1? bits and (1) bit extension for added length, and a quick change locking collet for reliable hold and simple changeover of bits.