Attachment for quick and effortless screwing and unscrewing of nuts along a threaded rod during the installation and deinstallation of Unistrut rails. Compatible with any standard ¼” impact wrench. Suitable for the most common nut sizes (M6, M8, M10, and M12). Each attachment is tailored to a specific nut size. Equipped with a reset button that returns the clamping jaws to the open position. Open clamping jaws – the attachment can be positioned at any point along the threaded rod. There is no need to push the tool up from the end of the threaded rod. Lifting capacity of up to 45 kg. Compact and lightweight. Rotates 360° – for easy access even in tight spaces. Internal components made entirely of metal, hardened gears for high durability. Easy quick-change mechanism.