Check the listing for details. Surplus Russtech RTCRT-20 Contact Retention tool. Condition: Used. Listed at 45.00 USD. The Surplus Russtech RTCRT-20 Contact Retention tool is a reliable and durable hand crimper designed by the reputable brand Russtech. This tool is specifically designed for retaining contacts and ensuring secure electrical connections. With its sturdy construction and efficient design, this contact retention tool is essential for professionals in the electrical industry who require precise and reliable crimping results.