I couldn’t find a ton of information on converting the older style Miller MIG guns (M-100 & M-25) to the new AccuLock consumable system. So, here it is. In my opinion this is the best upgrade you can make to one of these older style leads. These leads are found on the following machines:
M-100: Millermatic 135, 140, 175, 180 and 211
M-25: Millermatic 200, 210, 212, 250, 250X, 251, 252, Vintage, SuitCase X-TREME 12RC, SuitCase X-TREME 12VS