Yes. You will need to disassemble it completely and wash the dirty grease out and to clean/fix up any machinging goofs. Then when you re-assemble, be prepared to play with screw tensions, and maybe even sanding of the one plastic part. Once I did all that, I ended up with a nice three jaw chuck setup and was able to clamp it to my drill press and mill a nice circle in brass. I checked the run-out of the chuck prior to disassembly and it was hitting 9/1000 but after cleanup and re-assembly it was within 0.001 for the whole rotation. That's better than I was hoping for.