The sizes are marked pretty clearly on the box. Goes up to 2 1/2 inch. All are pretty standard and good sizes.
The hole saw attachment which is usually roughly 30$ alone can fit larger hole saws. Like 4 or 4 1/2 which are standard s for electrical boxes and Pot lights
The hole saw attachment which is usually roughly 30$ alone can fit larger hole saws. Like 4 or 4 1/2 which are standard s for electrical boxes and Pot lights