The “1-Punch” XJ Tool and XCELERATOR™ Jacks are made for each other. This tool should be used exclusively with XCELERATOR™ jacks. Additionally, it is necessary to use this with the HXTA termination aid.
Hubbell’s HXTA is a handheld termination aid for punching down keystone Ethernet jacks. The HXTA aka “jack knuckles” was designed for Hubbell’s line of Xcelerator jacks.