Hey everyone! I just got a SawStop CNS and it didn't come with any riving knives. I'm curious about the 2.0 mm versus the 2.3 mm riving knives that SawStop offers. I recently picked up a 2.3 mm one on eBay. Since I'm switching from a smaller saw, most of my blades are thin kerf. Is the difference between the 2.0 mm and 2.3 mm significant when it comes to full and thin kerf blades? I've read conflicting information online, so any clarity would be appreciated!
3 Answers
Full kerf blades are generally 0.125" (or about 3.2 mm), and thin kerf blades hover around 0.1", so a smaller riving knife can work for both. Just remember that there’s no universal standard, so your best bet is to go with the knife designed for your specific saw. It’s a bit of a hassle, but that’s how it is for most of us!
I just use the riving knife that came with my SawStop. It suits my needs just fine!
So, the 2.3 mm riving knife is designed to be thinner than the 1/8" (which is 3.2 mm). The idea is that it should slide smoothly, but here’s the catch: thin kerf blades usually come in at 2.3 or 2.4 mm, which means the knife can be a bit snug and might not slide as easily. If you're looking to run thin kerf blades, I would definitely recommend getting the 2.0 mm riving knife for a more optimal fit. That’s what I did, and it's been great on my 1.5HP PCS! Check it out [here](https://www.sawstopstore.com/product/2-0mm-riving-knife/).