Home › Blog › Buying Guide › From Inspection to Installation: What to Verify Before Buying a Pre-Owned, Used, Secondhand, Surplus FELLOWS 50-8 Hydrostroke CNC Gear Shaper made in USA If you’re serious about buying a used / surplus / remanufactured FELLOWS 50-8 “Hydrostroke” CNC gear shaper, you’ll want to evaluate it with an engineer’s eye before—and after—it leaves its original home....