This tool can only work for Our Keystone Jacks AGC166 AGC168 AGD166 AGD168. Xpress Jack™ Punchdown Tool The Xpress Jack™ is designed to make keystone jack terminations easier than ever. Seats and trims all 8 conductors in one simple and smooth motion. No more punching down 8 times for a single termination. Saves time and energy on both small and large jobs. One stroke keystone jack terminations Heavy duty all carbon tool steel construction Designed for 110 type 4 pair keystone jacks Rust resistant black oxide finish Ergonomically designed with a comfortable hand grip which reduces hand stress on large jobs Simple onehanded operation Onestroke keystone jack terminations Heavyduty all carbon tool steel construction Designed for 110type 4pair keystone jacks Rustresistant Black oxide finish Ergonomically designed with a comfortable hand grip which reduces hand stress on large jobs