I'm trying to figure out how to select the correct tooth count for my bandsaw blades. I know that a smaller blade is better for cutting tight curves while a wider blade is suited for re-sawing. However, I'm unclear about how to pick the right tooth count and gullet type. I've heard that a lower tooth count with a deeper gullet is ideal for re-sawing, but I'm curious why someone would choose a 3 TPI blade over a 4 TPI one, or vice versa. Does the choice of tooth count change based on the width of the blade? How do you all decide what blade to use?
3 Answers
The general rule is that a blade with more TPI (teeth per inch) will give you a finer cut, but it cuts slower and can jam more easily. Typically, you want fewer teeth for larger cuts and more teeth when doing finer work. What will you be using the bandsaw for?
Check out the Timber Wolf blades website. They have some solid guidelines for choosing blades based on material thickness and application, like ripping or re-sawing.
I recommend:
1. Using the largest blade your saw can handle properly—often it's 1 to 2 sizes smaller than what the manufacturer claims, which tends to be exaggerated. For 14" saws, go with a 1/2" blade instead of the suggested 3/4".
2. Opt for the coarsest tooth count available in that size.
This approach should give you better blade life and faster cuts, minimizing issues if your saw isn't perfectly aligned. Many believe more teeth mean longer life, but that's not usually the case. For wood cutting, you rarely need to worry about being too coarse—just be prepared to do a bit more sanding for the finish!