I purchased a Harbor Freight trim router and it was too big of drum diameter for the trim router lift that I bought. My brother bought a Bosch trim router and his wouldn't fit either. Both brands seem great otherwise, but they measure 66mm and you just cannot get them to fit a lift. So, this Vevor trim router seems well made and it fits, but we have not tested it yet. I'll be happy to let you know my opinion after I've used it a while.