A circular saw is an electric saw that turns a round flat blade to cut wood, metal, or plastic depending on the blade selected. Circular saws have a handle with on/off trigger switch, an arbor nut to hold the blade in place, and guards to protect the operator from touching the spinning blade.
How does a saw work?
A saw is a tool consisting of a tough blade, wire, or chain with a hard toothed edge. It is used to cut through material, very often wood though sometimes metal or stone. The cut is made by placing the toothed edge against the material and moving it forcefully forth and less forcefully back or continuously forward.
How does a circular saw spin?
The saw’s motor runs the blade rotation in a way that the circular saw teeth direction points up as it enters the wood you’re cutting. … That rotation direction pulls sawdust and chips up into the guard where they can eject through a dust port. It’s the opposite of a table saw, where the teeth enter the cut from the top.
Do circular saws cut up or down?
As a circular saw blade cuts up through wood, the fibers on top splinter off, a condition known as tear-out (usually worse on cross-cutting). If appearances are important, put the good side down when cutting.
What is a circular saw brake?
An electric motor brake (commonly referred to as an electric brake) is a safety feature incorporated into many modern power tools, such as circular saws, drills, and miter saws. Many manufacturers implement this feature into tools specifically with a spinning blade or cutter.
Why does my circular saw keep stopping?
Circular saws keep stopping due to a dull or damaged blade usually. However, problems like insufficient battery, or a damaged power cord can also cause a circular saw to keep stopping.
What happens if you put a circular saw blade on backwards?
A backwards circular saw blade will friction cut sheet meta. However, the noise level is horrindous! Yes – a circular saw blade can be accidentally mounted on the saw backwards – but it is a mistake you will only make one time because you will find out the instant you try to cut a piece of wood.
What are circular saws best used for?
With the right blade, a circular saw can be used to cut framing lumber, sheet goods, roofing, metal, masonry, and more. A powerful saw can be a major time-saver during demolition as well. Once you get used to using your circular saw, you can even use it to cut curves, like I did on my backyard deck.
Which way should blade face on circular saw?
Circular saws cut on the upward stroke, which means that they rotate in a clockwise fashion, cutting from the bottom up. This is why when you’re using a circular saw, the side of the wood that will be your “good” side should be facing down.
Why do circular saws cut upwards?
The teeth of circular saw blades are intended to cut upwards into the material from below and this is for safety purposes. It is important that you should not spin them in a different direction just like you spin a table saw blade.