Circular Saws
The handheld circular saw (often called a “Skilsaw”) is a framing workhorse. The biggest dangers are kickback, the lower blade guard being disabled, and cutting unsupported material.
- Construction
Photo: worker cutting a board on sawhorses, offcut free to fall, body to the side of the saw
Pre-use check
- Lower blade guard snaps back freely and fully covers the blade. Never pin or wedge it open.
- Blade is sharp, the right type for the material, installed with teeth pointing the right way, and arbor nut tight
- Base plate (shoe) is flat and secure
- Cord, plug and switch in good shape; GFCI protected
Cutting safely
- Set the depth so the blade extends no more than about 1/4 inch below the material. Less exposed blade means less kickback and less injury.
- Support the work so the cut doesn’t close on the blade. Support both sides near the cut, and let the offcut fall free. Don’t cut between two supports in the middle of a board.
- Stand to the side of the saw, not directly behind it, in case of kickback.
- Let the blade reach full speed before entering the material.
- Hold the saw with both hands when possible; keep your free hand well away from the cut line.
- Feed steadily. Don’t force it or twist it in the kerf.
- Let the blade stop completely and the guard close before setting the saw down.
Kickback happens when the blade binds or pinches and the saw shoots back toward you. Prevent it by supporting the work properly, using a sharp blade, cutting straight, and keeping a firm grip with your body out of the line of fire.
- Don’t reach under the material while cutting.
- Don’t hold small pieces by hand; clamp them.
- Don’t cut overhead or above shoulder height.
- Don’t carry the saw with your finger on the trigger.
Video: setting depth and supporting the work to prevent kickback
Standards & references
- 29 CFR 1926.304: Woodworking tools (portable circular saw guards)
- 29 CFR 1910.243: Guarding of portable powered tools
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