Since I maintain the vehicles of the families for a long time ... I had all the systems that exist to remove the oil filter !!!! But when the filter is blocked, the chain system or the system with cable and locking screw, both pierce the filter without unscrewing the Facom system with steel strip slides ... Only the Purflux key fact that asked, but it takes a different key for each filter diameter. What was needed was a system that adapts to any diameter, but which has an effective multi-point tightening that does not attack the metal filter before unscrewing it! .... This tool meets Mannesmann perfectly to these constraints and no filter can resist him, gently. However, I have improved a bit by clamping jaws in its three elastic bracelet. Thus, we have it on the filter without having to retain the pre-clenched jaws on the filter. Then the key is positioned so as to have a maximum displacement (amplitude will not be lost to tighten the jaws) and with a wrench 21, it remains only to unscrew. If by chance we must take it twice because of reduced clearance, no problem, the tool remains in place with bungee !!!! Really PERFECT!
