Proper cable tensioning is an important part of the installation and long term performance of railings using CableRail stainless steel infill. This easy to use tool is great for installers looking for a faster and more effective way to tension CableRail assemblies. Works with 1/8-in., 3/16-in.*, and 1/4-in.* diameter stainless steel CableRail in a wide variety of post materials. * NOTE: Tensioning Tool includes the 1/8-in. diameter cable adapter head. The 3/16-in. and 1/4-in. diameter cable adapter head is available separately through special order.