The Hilti-2247392 SID 6-22 Cordless Impact Driver is built for high-torque applications, delivering outstanding quality and performance making it perfect for various fastening work. The unit is designed to be lightweight and small in size, making it easy to use even when working in confined spaces and the cordless operation delivers maximum job site portability. The block is reinforced and suspended in three ways, making the SID 6-22 suitable for trade or DIY use. The Hilti SID 2-A is soled as a bare tool (without lithium-ion batteries) which means that it can be used with your other existing Hilti battery pack. The best impact driver makes you more productive and effective as it is one high efficient battery operated product.