A lathe is often the first serious machine a small shop invests in, and the choice shapes what work you can realistically take on for years. Before comparing brands, it helps to be honest about the parts you actually make: their maximum diameter, their length, and the materials involved. Those three numbers point you straight at the swing, the distance between centres, and the spindle power you need.
Match the size to the work, not the catalogue
Swing over the bed tells you the largest diameter you can turn, but the more useful figure is swing over the cross-slide, which is always smaller. Buying a machine that only just clears your typical part leaves no room for chucks, steady rests, or the occasional oversized job. A modest margin here saves frustration later. Distance between centres works the same way: long shafts need the reach, and a bed that is barely long enough forces awkward setups.
Spindle bore and power
The spindle bore decides whether you can feed bar stock through the headstock, which matters enormously for repetitive turned parts. On power, a small hobby-grade motor will stall in tougher alloys, so a shop taking paid work should look for a rigid machine with enough torque at low speed. Low-end torque, not headline top speed, is what removes metal in steel.
Manual, CNC, or something in between
A good manual lathe remains the backbone of one-off and repair work. CNC earns its keep on batches, but it demands programming time and a bigger budget. Many shops keep a solid manual machine and add CNC only when the volume justifies it. There is no shame in starting manual; the skills transfer directly.
Rigidity and condition
Rigidity separates a machine that produces clean finishes from one that chatters. Cast-iron mass, wide bed ways, and a well-supported tailstock all contribute. When buying used, check the ways for wear near the chuck where most cutting happens, test for backlash in the leadscrews, and listen to the spindle bearings under load. A worn but honestly priced machine can be rebuilt; a tired machine sold as pristine is a trap.
Finally, think about the ecosystem: tooling, chucks, collets, and spare parts availability. A slightly more common machine with easy access to accessories will out-earn an exotic bargain that leaves you hunting for a single obsolete gear. Choose the lathe that fits your work today with a little headroom for tomorrow, and it will pay for itself many times over.