Machined From 6061 Billet Aluminum, and has a brilliant Chrome finish. Tempests’ new cable clamp is a drill and tap system, providing easy cable removal for cable replacement and/or service. This hot new design won’t mar your paint as traditional clamp styles often do. Fits: 1-¼” and 2” tubing (you choose your size) and will hold cables up to 5/16″ Diameter.