Porter-Cable PCCK647LB Impact Driver, Battery Included, 20 V, 1/4 in Drive, Hex Drive, 3100 ipm, 2900 rpm Speed

The 20 V max cordless impact driver is brushless to increase motor life and deliver the power you need, along with 50% more runtime. This powerful motor handles large fastening applications and provided enough rpm for quick speed. The quick-change hex allows for one-handed quick and easy bit changes.