so i have a lot of bits left over from the previous operator and i am trying to figure out a way to test/examine the sharpness of the bit without having to use every bit in the machine and then checking the quality of the cuts on the material (it would take a long time with the amount of duplicate bits i have) so if there are any tricks or tips for checking the sharpness of my bits(cutguru) by hand that would save me a lot of time