This document describes several line end clamps for attaching flexible leads to copper, aluminum, or other tubes. It provides the diameter ranges for each clamp model, as well as details on attachment and testing specifications. The clamps are CE22B/ESI-L2 for 38-76mm tubes, CE22C/ESI-L3 for 60-90mm tubes, CE22C/A+B for 19-76mm tubes, and CE16/5/ESI-L4 tested to 50kA for 127mm aluminum tubes. Contact information is also provided for Thorne and Derrick UK.