Ingersoll Rand Cordless. The Convenience of Cordless with the power of Air. The W7150P 1/2" 20V High-Torque Pin Anvil Impactool is the only cordless impact wrench that can run pound-for-pound with the Ingersoll Rand best-in-class 2235TiMAX 1/2" air impact wrench. The W7150P will make quick work of tough everyday bolting jobs.