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The short answer: buy a wood lathe if you want to make bowls, pens, spindles and gifts; buy a metal lathe if you want to make precise machine parts, shafts and threads. Both spin the work against a cutting tool, but a wood lathe lets you hold the tool by hand on a rest and shape curves freehand, while a metal lathe clamps the tool to a carriage for rigidity and repeatable dimensions. One machine rarely does the other's job well.
The rest of this comparison explains the differences one by one, what each machine costs you in space and tooling, and the honest answer to the common question of whether you can turn wood on a metal lathe.
Wood lathe vs metal lathe at a glance
| Wood lathe | Metal lathe | |
|---|---|---|
| Tool holding | Hand-held tool on a tool rest | Tool post on a carriage and cross slide |
| Tool movement | Freehand | Handwheels, power feed, lead screw |
| Typical work | Bowls, spindles, pens, boxes | Shafts, bushings, threads, precision parts |
| Workholding | Four-jaw self-centering scroll chucks, faceplates, drive centers | Three-jaw self-centering and independent four-jaw chucks, collets, centers with lathe dogs |
| Threading | Not built in | Lead screw and change gears |
| Precision focus | Shape and finish by eye | Measured dimensions |
| Waste | Shavings and fine dust | Metal chips, cutting fluid |
| Common shop sizes | Mini, midi and floor lathes | Mini, benchtop and floor (engine) lathes |
| Learning curve | Days to make something useful | Longer, plus measuring and tooling skills |
| Amazon | See options | See options |
The differences, one by one
1. How the tool is held
This is the core difference. On a wood lathe, the turning tool (a gouge, skew, scraper or carbide tool) rests on a bar called the tool rest, and your hands guide it. You can swing the handle, roll the tool and change the cutting angle as you go, which is how woodturners cut beads, coves and bowl curves. Our guide to the parts of a wood lathe shows the banjo and rest in detail.
On a metal lathe, the tool is clamped in a tool post on the compound rest, which sits on the cross slide, which rides on the carriage. Handwheels move each slide in a straight line, and a lead screw can drive the carriage along the bed automatically. Metal needs that rigidity: a hand-held tool cannot resist the cutting forces involved.
2. Precision and measurement
Woodturning is judged by eye, feel and calipers when a fit matters, such as a box lid or a pen tube. Metal turning is about numbers. Metal lathes have graduated dials on the cross slide and carriage so you can take a measured cut, and machinists check work with micrometers and dial indicators.
3. Rigidity and mass
Metal lathes are built to resist heavy, steady cutting forces with stiff beds and carriages, and the carriage, gears and slides add weight. Wood lathes need mass for a different reason: to damp the vibration of an unbalanced bowl blank. That is why serious bowl lathes are heavy too, but their structure is simpler.
4. Speed
Wood lathes spend much of their time at speeds suited to the diameter of the wood, and small spindles and pens benefit from high speeds. The American Association of Woodturners' speed guidance runs from about 3,000 RPM for 1-inch spindle stock down to 1,000 RPM or less at 4 inches and above. Metal lathes are usually geared for torque at lower speeds, and their correct speed depends on the metal, the tool material and the diameter. Check each machine's manual rather than assuming one range fits both.
5. Workholding
Woodturners mostly use four-jaw self-centering scroll chucks with dovetail jaws, faceplates screwed to the blank, and spur drive centers. Metal lathes use three-jaw self-centering chucks for round and hex stock, independent four-jaw chucks for square or off-center work, collets for small precise parts, and centers with a lathe dog. Our 3-jaw vs 4-jaw chuck comparison explains why.
6. Threading and feeds
A metal lathe can cut screw threads because its lead screw is geared to the spindle: as the work turns once, the tool moves a fixed distance. Wood lathes have no lead screw. Woodturners who want wooden threads use thread-chasing tools by hand or a separate jig.
7. Waste and maintenance
Wood lathes make shavings and fine dust, so dust collection and a respirator matter, especially when sanding. Metal lathes make sharp chips and often use cutting fluid, and their ways and lead screw need regular cleaning and oiling.
8. Cost of getting started
The machine is only part of the bill. A wood lathe needs a chuck, a few turning tools, a face shield and a sharpening setup. A metal lathe needs cutting tools, a tool holder system, measuring tools and often a quick-change tool post. Plan for tooling either way.
9. Safety habits
Both machines share the basic hazards of rotating work: entanglement and parts thrown from the spindle. Loose sleeves, gloves, jewelry and long hair must stay clear on either. The specific risks differ, though. On a wood lathe, the American Association of Woodturners recommends a full face shield whenever the lathe is on, starting at a low speed, keeping the tool rest close to the work and standing out of the "firing zone" in line with the spinning piece. Catches, where the tool digs in and is pulled down, are the classic woodturning hazard. On a metal lathe, hot, razor-sharp chips and a chuck key left in the chuck are the classic dangers, and safety glasses are the minimum. Whichever you buy, read the manual's safety section before the first switch-on.
10. Space and mess
A mini wood lathe can share a bench in a garage, and even midi lathes are light enough to move. Metal lathes of the same swing are usually heavier for their size because of the carriage and gearing, and they need a solid, level bench to hold their accuracy. Wood lathes create more airborne dust; metal lathes create chips and fluid that stay closer to the machine. Plan dust collection or a respirator for wood, and chip trays and cleanup time for metal.
Can you turn wood on a metal lathe?
Yes, and plenty of people do, but with trade-offs.
- Dust and oil. Wood dust sticks to the oiled ways, lead screw and gears. Cover what you can and clean and re-oil the machine afterwards.
- Tool holding. You can cut wood with a tool bit in the tool post, which works for cylinders and tapers. For freehand shapes, some owners fit a hand-tool rest to the cross slide.
- Speed. A metal lathe's speeds may be low for small-diameter wood, which cuts better at higher surface speed.
- Capacity. Many hobby metal lathes have a modest swing, so bowls are limited.
For an occasional dowel or handle, a metal lathe is fine. If you want to turn wood regularly, a dedicated wood lathe is cheaper than you might think; see our mini wood lathe guide.
Can you turn metal on a wood lathe?
We do not recommend it. Wood lathes are designed and documented for wood, and their manuals are written around hand-held tools on a tool rest. Hand-holding a tool against steel invites violent catches, and the bearings, bed and rest are not built for metal-cutting forces. Some turners do work soft materials like acrylic or resin pen blanks, which behave much like dense wood; follow your lathe maker's guidance on materials.
Choose a wood lathe if…
- You want to make bowls, pens, spindles, ornaments or boxes
- You like shaping by eye and feel more than by numbers
- You want to make something useful in your first few sessions
- You have limited space and budget (a mini lathe fits on a bench)
Our best wood lathe guide compares current models, and woodturning for beginners covers the first steps.
Choose a metal lathe if…
- You want to make or repair machine parts, shafts or bushings
- You need threads, precise diameters or repeatable dimensions
- You are building models, engines or tools
- You are ready to invest in measuring tools and tooling as well
FAQ
What is the difference between a metal lathe and a wood lathe?
A wood lathe has a tool rest and you hold the cutting tool by hand, which lets you shape curves freehand. A metal lathe clamps the tool in a tool post on a carriage that moves with handwheels or an automatic lead screw, giving the rigidity and precision needed to cut metal and threads.
Can you turn wood on a metal lathe?
Yes, with limits. A metal lathe can turn wood with the tool in the tool post, and some owners fit a hand-tool rest. The drawbacks are wood dust mixing with the oil on the ways and leadscrew, a carriage that gets in the way of freehand work, and speed ranges that may be low for small spindles. Clean and lubricate the machine afterwards.
Can you turn metal on a wood lathe?
We do not recommend it. Wood lathes are designed and documented for wood, with hand-held tools on a rest. Hand-holding a tool against steel invites violent catches, and the bearings, bed and tool rest are not built for metal-cutting forces. Use a metal lathe for metal.
Is a wood lathe or metal lathe better for a beginner?
It depends on what you want to make. For bowls, pens, spindles and gifts, a wood lathe is cheaper, lighter and quicker to learn. For machine parts, shafts and threads, you need a metal lathe, and you will also need measuring tools and tooling that add to the cost.
What is a manual lathe?
A manual lathe is a metal lathe operated by hand through handwheels and levers rather than by a computer program. The term is used to distinguish conventional engine lathes from CNC lathes.
The bottom line
A wood lathe and a metal lathe share a spinning spindle and not much else. If your goal is woodturning, buy a wood lathe and spend the difference on a good chuck and tools. For a refresher on the basics of both, read what is a lathe.