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SESK: Stuff Everyone Should Know · sesk.info/wood-ripsaw-spreader

OSHA requires hand-fed circular ripsaws to have which part to help stop wood being thrown back?

A spreader, which keeps the cut from squeezing the blade.

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  1. A tilting arbor
  2. A spreader ✔
  3. A dust port

Why: A spreader sits behind the blade inside the cut and keeps the wood from closing on the blade. Pinched wood is a main cause of kickback. Modern saws use a riving knife for the same job.

Huh, didn't know that: The rule is 29 CFR 1910.213(c)(2), written for hand-fed circular ripsaws.

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References

Answer: A spreader. A spreader sits behind the blade inside the cut and keeps the wood from closing on the blade. Pinched wood is a main cause of kickback. Modern saws use a riving knife for the same job.

  1. OSHA 29 CFR 1910.213 Woodworking machinery requirements www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.213
    Each hand-fed circular ripsaw shall be furnished with a spreader
    Checked 2026-10-10.

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