Are Circular Saws Reverse Threaded?

are circular saws reverse threaded

Ever wondered whether circular saws are reverse threaded? Well, in this post I’ll try to clear things out for you. Before we start, it is worth noting that a reverse-thread bolt wraps around an item in the opposite direction, in that you need to turn them in a counter-clockwise direction to tighten them up.

So, are circular saws reverse threaded? Yes for left-handed circular saws and no for right-handed circular saws. Generally, for left handed circular saws, you will tighten the bolt by counterclockwise since the blades turn clockwise. And, for right handed circular saws, the blades turn counterclockwise, so the bolt will tighten by clockwise motion.

The other aspect worth noting is that the art of suing circular saw demands one opt to be careful and avoid unnecessary accidents. The element means that even the kind of bolts used needs to favour the user. The art thus requires the usage of reverser threading to ensure that the loosening of the lock in a counter-clockwise direction. The aspect is critical in the sense that if the blades get loose in the process, the user might be in the danger of being injured. Also, during sharpening, the edges need to be removed from their flames. Thus, the art of using reverse threads becomes more active.

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Once you understand that circular saws are reversely threaded, you need to follow on how to tighten your blade on a circular saw.

How do you tighten the blade on a circular saw?

It is worth noting that before you think of tightening your saw, ensure that your saw is unplugged. The other aspect worth noting is that your saw came with a spanner or an Allen key that is specific.

Therefore, you need to tighten the arbor nut using a socket wrench. It is critical to identify all the bolts that are holding the saw in its right position. The aspect is crucial in the sense that it helps in determining the type of spanners to utilize in tightening the blades of these kinds of saws. The art is critical in the sense that it enhances more safety, especially when sharpening the knives.

Locking the Blades

If your saw has a shaft utilized in locking, you need to ensure that the blade is in its position such that it won`t move while turning the arbor nut. In other words, the blade should need to stay in the best place that during tightening, it doesn’t change its alignment. However, if your saw doesn’t have a shaft, you need to use clamps or rather vise grips that are critical in holding the blade when tightening. It is worth noting that the art of placing the edge in a fixed position while tightening is essential to the sense that it enhances one`s safety. The artwork relates to the fact that if the blade is not well adjusted, there are chances that one can injure his or her hand during the tightening process.

While tightening the nut, one of the aspects worth noting is the direction that enhances tightening. In most cases, the rule of tightening nuts dictates that it stretches in the opposite direction of the rotation of the blades. In other words, the nuts tighten the blades in a counter-clockwise direction. The aspect is critical in the sense that when the saw or rather the edge is in motion, the nut doesn’t loosen. It is worth noting that if otherwise was the case, that is the nut tightening in the same direction with the blade direction, there are chances that the blade will unscrew and fall off. Thus, even if you don’t know the direction of tightening the screw, you need to check on the course of the blade and use the counter-clockwise direction to screw the nut as the edge is in a fixed position. In other words, the leaves with aright handed circular saws turn into a counter-clockwise direction with the art of tightening the bolt.

When tightening the bolt, there are cases where the outer flange or rather the rim of the blades keep turning. In most cases, the latch might not stretch well. However, you need to hold the edge tightly and allow the bold to move. You may use your hands or rather a spanner to move the bolt in the opposite direction. An Allen key or rather a socket wrench might be useful in tuning the bolt is the opposite direction of the blade to enhance more tightening.

Also, you need to keep checking the blade on the circular saw periodically to ensure that it is aligned and tightened correctly. It is worth noting that poorly maintained power tools are a significant cause of preventable accidents. In other words, if you are keen on checking whether your blades are well fixed, there are chances that you will avoid a lot of accidents. The other aspect worth noting is that you shouldn’t force a power tool. In other words, if you have a problem tightening the blade yourself, take it to a professional for servicing and avoid unnecessary accidents.


In a nutshell, the art of understanding your blade is essential. It is worth following that a circular saw requires reverse threading for it to be effective. The other aspect worth noting is that the art of using a blade causes it to be loose. In most cases, a free edge might not be useful, and there are prone to falling hence causing accidents. However, it is worth noting that the bolt that tightens these bolts moves in the opposite direction of the blade. Thus, even if you don’t understand the direction of tightening your knife, make a point of holding the rim of the edge firmly and stretch the bold in the counter-clockwise direction. It is critical to keep checking the status of the blade and avoid unnecessary accidents. 

I recently wrote an article on How to Change Circular Saw Blades. Read it here.

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