Circular Saw Safety
Circular saws is are power saws that use a
spinning disk-shaped blade, which often
has a toothed edge
There are many types of circular saws:
* Miter saws (or Chop saws)
* Radial arm saws
* Saw mills
* Table saws
* Panel saws
* Biscuit joiners
* Pendulum saws
Should be considered extremely
There are many different safety
issues associated with circular saws
– Especially portable and cordless models
Could cause extreme body damage,
including loss of fingers or limbs, even
Workers must be extremely careful
One small slip up could cause a really bad
Proper safety precautions are essential
Data from a 2001 Consumer Products
Safety Commission study on stationary
circular saws show:
– Of 52,000 injuries:
Lacerations – 68%
Amputation – 9%
Fractures – 9%
Avulsions – 8%
Other – 6%
– 83% of the injuries were to the fingers
A large majority of the injuries were caused by
contact with the blade
Most of the others were caused by being struck
with the cutting material or debris
5% required hospitalization
3% required an overnight stay
*Study did not include portable circular saws
A worker was ripping wood into long
lengths using a portable saw
As he cut up the wood, he placed his left
hand behind the saw to grip the wood he
This caused the wood to close in on the
blade and the saw kicked backward (since
it rotates clockwise) and cut his thumb off
A worker was nailing and trimming particle board on an
8/12 pitch roof of a house under construction.
He slid off the roof falling 30’ head first onto a piece of
He appeared to slide off the roof feet first with the
electrical cord from the a circular saw wrapped around
his right leg.
The cord was caught between the joist material, went
taught, flipping the victim head first onto the wooden
debris on the ground.
He was pronounced dead at the scene
All fixed power driven woodworking tools shall be provided with a
disconnect switch that can either be locked or tagged in the off
The operating speed shall be etched or otherwise permanently
marked on all circular saws over 20 inches in diameter or operating
at over 10,000 peripheral feet per minute.
All portable, power driven circular saws shall be equipped with
guards above and below the base plate or shoe. … When the tool is
withdrawn from the work, the lower guard shall automatically and
instantly return to the covering position.
Personal protective equipment. All personal
protective equipment provided for use shall
conform to Subpart E of this part.
Circular saw fences shall be so constructed that
they can be firmly secured to the table or table
assembly without changing their alignment with
Wear Eye Protection
Wear Hand Protection
Wear Hearing Protection
Wear Dust Masks
Make sure you are operating in a safe area
out of the way
Be careful of the cords!
Proper Safe Procedure
Make sure you are using the correct blade and that it's
properly tightened. Always use a sharp blade. Dull
blades bind and overheat.
Check the blade guard and never disable it
Set the depth of the blade properly to avoid kickback
Support the work on both sides. Clamp it on one side if
you have to.
Safe Operation (cont.)
Look for knots and nails before you begin. Be cautious
when approaching them.
Start the blade before it makes contact with the material
to be cut.
Stand to the side when you saw in case the wood is
kicked back, and don't over-reach.
Let go of the trigger if the blade binds, and stick a
wooden shim in the cut to release it.
End Circular Saw Safety
Watch your fingers!