PORTER-CABLE 4-1/2-Inch Circular Saw Blade, Plywood Cutting, 120-Tooth (12057)

I purchased this blade for use with my Genesis 4 1/2" circular saw in order to cut some birch plywood for a subwoofer project. The blade cuts cleanly and has no problem with 3/4" 7 ply material (9 ply with the veneers). I am about 20 cuts in and it shows no signs of dulling, and I have about 20 more before the project is complete. For the price it is a good deal, though I wish I could have purchased it without being an add-on item since I feel it would be worth it to purchase a few more based on how clean the cuts come out with a brand new blade. It would be nice to have a couple back ups in case the blade gets dull on a future project.One thing to note: The Genesis is technically a worm drive in that the blade sits off the left hand side of the saw. Pay attention to the direction of rotation on the Porter+Cable blade. It needs to be installed with the lettering away from you, or hidden. Installing it with the label facing out will result in poor cut quality since you will be running the blade backwards. Installed correctly the cuts have virtually no splintering, and the board edge is very smooth. Incorrect installation will heat the wood up and may blacken the edge and leave kerf marks. Running the blade backwards may actually be beneficial if you are cutting plastic, like PVC, as I have had good results with other fine tooth blades run backwards on plastic. I have not tried this yet, but I am sure it will come up at some point.

I am new to power tools and didn't realize I needed the right blades for the right jobs. Yes I learn the hard way so I purchase this blade since I have been using the wrong one. Boy am I pleased with the quality and performance of this blade. I wish I had purchase this sooner as this is working for me very well. I am not too familiar of brands in general but quality on this is very high. I would buy it again when I need too or even consider buying different sets of blades made by the same manufacture.[...] I am an avid Amazon shopper and depend on the reviews of others to help make my purchases. I would only return the same favor back to the community and pride myself on being as honest in my reviews as possible. Please give me thumbs up if this was helpful.

Works great on DeWalt 4.5 inch 24volt atomic saw with caveats. And they are:1. Must Flip the BLADE OVER on the plain steel backside to use, the blade must match the DeWalt 24 volt 4.5 inch Atomic circular saw's rotation !2. Get Saw up full blade rotation speed to start cutting..then begin your cut3. Properly support you work piece, so you don't cause the saw blade to get in a bind.4. Go slowly, so that the blades saw kerf teeth have a chance to clear out the material, You will know you are pushing the saw to hard because the saw will bind up5. Do these steps and you will get a very clean smooth cut

Put this on my Worx WX439L saw because it did not come with a good blade for cutting through wood or compressed particle board. The teeth on this provided a smooth enough edge and plenty sharp.

Fits my Rockwell saw perfectly and cuts smoothly. The Rockwell saw I bought only came with 1 blade which was great for cutting 2 by 4s but not the best finish for cutting plywood. This is exactly the blade I needed, 120 tooth saw! Such a smooth finish. Very nicely made and durable blade. Came packed very well with a hard plastic around the edges to prevent any one from getting cut. Surely worth the price to have this blade in your collection. Very affordable saw blade. Fits any saw with 3/8 inch arbor and 4 1/2 inch blade. Would buy this again if needed due to normal use. Good product from Porter-Cable. Thumbs up!!

THis is a great all-around all-purpose blade for my DeWalt batterty saw. I used the old one for almost everything - plywood, PVC pipe, tree limbs, and it eventually got too dull. I got more than my expected lifespan from the old one, but I will rate the longevity as 3 stars.

This is a fine finishing blade for plywood, hardboard and other wooden materials. It has fine teeth and makes a clean cut. However, this is a Porter Cable blade and works differently on a Dewalt 4.5 inch saw. The rotation is backwards from the Porter Cable saw, so for the Dewalt you have to flip the blade over to have the teeth rotating in the correct direction. Be sure to note the spin direction of the arrows on the face of the blade, then compare them to the spin arrows on the supplied Dewalt blade (you'll see the Porter Cable is the opposite). Just flip the blade so that the printed face of the blade isn't visible (is against the machine) and the Dewalt will deliver fine, precise cuts with little tear away of the material.

Worked ok on 1/4" and 3/8" stuff.But when I had to cut something like 1/2" Birch Plywood it overheated about 12 inches in.Noticeable burning smell.Probably inevitable with 4.5 inch blades over larger diameter blades.