For small, precise turned parts in volume, a Swiss-type lathe is usually the best choice — the guide bushing supports the stock right at the cut, holding tight tolerances on slender parts at high speed, and a bar feeder plus sub-spindle finishes parts complete and unattended.
If parts are a bit larger or lower volume, a compact turning center with live tooling and a sub-spindle covers it. Match bar capacity to your stock and prioritize live tooling if parts have off-center features. Check values at The Machine Blue Book.
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