Welcome to our Facmaster Factory!
Mini mill mini lathe ballscrew acme dro kits harbor ,kits are sold as-is with a 30-day warranty. If a screw has a thread that falls off under normal use, well replace it. If your leadnut cracks under normal use, well replace it. If you spin your new motor mount bearings at 1,000 rpm youll not only burn out the bearings, youll need to replace them yourself. sorry.