Rock Tumblers For Parts Cleaning Question The Hamb
Jan 07, 2014 Depends on what Im cleaning. I actually use a home type concrete mixer filled with sand and gravel for nuts and bolts and similar steel parts,,,,, plus it cleans out any concrete pieces from whe friends borrow it and dont wash it out after pouring concrete like they should. For aluminum, I use walnut shells in my tumbler. For stainless, wet sand.