Click on chart for printable PDF.
HELPFUL HINT:
The series number is the first 2 digits of each bur number.
For example, if you are looking for a series 21 all material grain, look for a bur number that begins with 21.
Or if you are looking for a series 28 very coarse grain, look for a bur number that begins with 28.
For example, if you are looking for a series 21 all material grain, look for a bur number that begins with 21.
Or if you are looking for a series 28 very coarse grain, look for a bur number that begins with 28.
