Size Arbor Grit Maxrm Type
4" 5/8" 36# 40# 60# 80# 120# 15300 T27 T29
4-1/2" 7/8" 36# 40# 60# 80# 120# 13300 T27 T29
5" 7/8" 36# 40# 60# 80# 120# 12000 T27 T29
7" 7/8" 36# 40# 60# 80# 120# 8600 T27 T29
T-27/Flat"C Used when grinding on flat surface,correct angle recommended between 0-15degrees,best chioce for smooth finishing.
T-29/Conical"C Built in angle for grinding ,this design is excellent for contour and edge work,angle at 10 degrees,It also provides greater surface contact and is more aggressive.Best at more dramatic angle of 15-25 degrees.