Designed to make tightening and loosening your Kupo castle nut a breeze, the Kupo Mitchell Wrench features stainless steel construction for years of faithful service. The wrench has slots and holes that line up with the Kupo castle nut, allowing you to select the position that gives you the greatest leverage. As the holes and slots are fixed into the stainless steel wrench, there is no need for adjustments or worry that it will slip when in use. The handle likewise features through-holes that line up with the Kupo castle nut, providing you an alternate position to use the wrench. An integrated M12 socket in the handle enables using the Mitchell wrench as an M12 nut driver, which means one less tool you need to carry.