Using the new WDL-110EZ, terminating Cat5e/Cat6/Cat6A keystone jacks has never been easier. Save time, labor, and money. Seats, Terminates, and Trims all 8 wires at once. * ONLY TOOL (Keystone Jacks are sold separately)* This tool has been designed to work with our Weltron 678 jack Series. 44-678YL, 44-678BK, 44-678RD, 44-678C6-OR, 44-678C6-BL, 44-678C6-BK, 44-678C6-RD, 44-678C6-PL, 44-678C6-GY, 44-678C6A-SHLD**** Please be advised, This tool might not work with any other keystone jack brands