A circular saw is a power-saw using a toothed or abrasive disc or blade to cut different materials using a rotary motion spinning around an arbor. … A circular saw is a tool for cutting many materials such as wood, masonry, plastic, or metal and may be hand-held or mounted to a machine.
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.
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.
Why do circular saws cut up instead of down?
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.
Which way should teeth face on circular saw?
When installing a new blade, make sure the teeth are pointing downward to enable a clean cut through the workpiece. Upward-facing teeth can cause a severe injury to the operator.
Do circular saws cut up or down?
When appearance matters, make cuts with the good side facing down, as circular saws can splinter the wood on the top side. Making your cut line on masking tape can reduce splintering. Start over if you see that you’ve veered off from the cut line instead of trying to curve your way back on track.