7" Diam x 1-1/4" Hole x 1" Thick, I Hardness, 60 Grit Surface Grinding Wheel;Aluminum Oxide, Type 5, Medium Grade, 3,600 Max RPM, Vitrified Bond, One-Side Recess
8" Diam x 1-1/4" Hole x 1" Thick, I Hardness, 60 Grit Surface Grinding Wheel;Aluminum Oxide, Type 1, Medium Grade, 3,600 Max RPM, Vitrified Bond, No Recess
12" Diam x 5" Hole x 1" Thick, I Hardness, 60 Grit Surface Grinding Wheel;Aluminum Oxide, Type 1, Medium Grade, 2,705 Max RPM, Vitrified Bond, No Recess
12" Diam x 3" Hole x 1" Thick, H Hardness, 60 Grit Surface Grinding Wheel;Aluminum Oxide, Type 1, Medium Grade, 2,705 Max RPM, Vitrified Bond, No Recess