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How to Use a Steady Rest
Guide · Updated October 28, 2026
A steady rest clamps to the lathe bed and supports long or slender work so you can face, drill or bore the end, or turn without chatter. The jaws must center the work on the spindle axis, or it will bend or drift.
Center within tenths
Indicate the work near the rest before cutting. Check your indicator against gage blocks; the free Gage Block Calculator builds the stack.
Step by step
- Prepare a true spot: Turn a short true band where the jaws will ride, between centers if needed.
- Mount the rest: Clamp the steady rest to the bed near the end you will work on.
- Set the jaws: Bring the lower jaws to the work lightly, then the top jaw, with the work still supported at the tailstock.
- Indicate: Remove the tailstock and indicate the work near the rest; adjust jaws until runout is within a few tenths.
- Lubricate: Oil the jaws or use bearing-type rollers; check for heat often.
- Cut: Face, drill or bore at moderate speed, checking the jaws do not loosen.
Worked example
Facing and center-drilling the end of a 30 in long, 1.5 in diameter shaft: chuck one end, support the other with the tailstock, turn a 1 in wide true band near the free end, and set the rest on it. Pull the tailstock back, indicate the band and adjust the jaws until runout is under 0.0005 in, then face and center drill at about 400 RPM.
Marks and heat
Bronze or brass jaws mark the part if dry or too tight. Keep them lightly oiled, back off slightly and rotate the work by hand to feel for drag. Roller jaws avoid most marking on finished work.
Taper and chatter
If the end drifts or turns taper, the rest is off center. Re-indicate. Chatter usually means the jaws are loose or the rest is too far from the cut.
Tips
- Alignment: aligning a lathe tailstock.
- Runout: runout and TIR basics.
- Facing: facing on a lathe.
FAQ
Steady rest vs follow rest?
A steady rest clamps to the bed; a follow rest mounts to the carriage and moves with the tool.
When do I need a steady rest?
When work sticks out more than about 3–4 times its diameter and you need to work on the end.
How tight should steady rest jaws be?
Just touching, so the work turns freely by hand without play.
What oil for steady rest jaws?
Way oil or a light grease; check often for heat.
Can I use a steady rest on rough stock?
Turn a true band first; rough surfaces make it run out.
Related guides and calculators
- How to Align a Lathe Tailstock
- How to Face on a Lathe
- How to Center Drill and Spot Drill
- Runout and TIR Basics
- How to Indicate a Part in a 4-Jaw Chuck
- Turning Speeds and Feeds
- How to Cut a Groove on a Lathe
- How to Use a Follow Rest
- How to Turn Between Centers With a Lathe Dog
- How to Use a Live Center
- How to Use a Cathead on a Lathe
- All free machinist calculators
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