I'm going to go with Achipmunk, the rest of the folks all have good advice. I bought a Cambell Hausfield (spelling), 7 years ago. This unit is a vibrator type on a 40 gal. tank. Its great for filling tires and a 3/8 th impact but no good for sanding or polishing wheel. Went to Flea market and got a duel piston unit. $ 375.00 and rebuilt pump for another $35.00. It will handle anything I can throw at it. Don't know if I needed to rebuild pump but, I know it will not let me down soon. Check with Rennigers in Mt. Dora, FL. They have several dealers for new and used units. I always go with the guys that have clean clothes. You can do the same in your area I hope. Doc

Currently making 1954 3100 better than new and Genetics