The Ilsco CSWS-1-38 SureCrimp Copper Compression Lug is manufactured from high-strength seamless copper tubing and electro-tin plated for superior corrosion resistance. Designed with a chamfered entry for easy conductor insertion, this lug is suitable for use in circuits rated 35KV or less, provided proper high voltage spacing and insulation techniques are employed. It is UL Listed and CSA Certified, compatible with ILSCO and major competitor's compression tools for versatile application. The color-coded ink marking clearly indicates key details, including the correct die for application.This is a 1 AWG copper compression lug with a standard barrel and a sight window. It features a 1-hole mounting design and is tin-plated. The stud size is 3/8 inch. It is suitable for use in circuits rated 35KV or less and is UL Listed and CSA Certified. The allowable gauge range is 1.