The IQv series IQv12 IQv20 was designed on the idea that intelligent use and management of voltage could lead to smaller, lighter and yet more powerful cordless tools than anything available on the market. Up to 110% better power-to-weight than competitive impact wrenches. More torque than popular 28V and 36V tools, in smaller and lighter packages. Integrated microprocessor delivers optimized power. Universal charger handles any battery voltage or chemistry.