Here’s a bandsaw blade radius chart to help determine the proper blade width for when you are cutting circles. You should always saw with the widest blade possible for a particular cut. However, when cutting circles be aware that the width of the blade will determine the smallest radius that you will be able to cut. The smaller the blade width the smaller/tighter the radius.
Here is a list of different bandsaw blade widths and the minimum cut radius for each:
| Blade Width | 1/8" | 3/16" | 1/4" | 3/8" | 1/2" | 3/4" | 1" |
| Min. Radius | 3/16" | 5/16" | 5/8" | 1 1/2" | 2 1/2" | 5 1/2" | 7" |
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