POWERTEC 8 in. x 1 in. 80-Grit 5/8 in. Arbor White Aluminum Oxide Grinding Wheel 15512 - The Home Depot
Grit chart of grinding wheels - Forture Tools
Firepower 0.5-in Steel 60-Grit Grinding Wheel in the Abrasive Wheels department at Lowes.com
Which Grinding Wheel Should I Choose? | Norton
Amazon.com: PFERD Bench Grinding Wheel Carbide Type | 7x1x1 inch, vitrified Bond, Silicon Carbide, grit Size 120 | 61793 - for use on Hard Materials, Included bushings 3/4, 5/8, 1/2 inch : Industrial & Scientific
Type 4A2P General Purpose Grinding Wheel 6" x 1/4" 600 Grit
6" Silicon Carbide Grinding Wheel in #100 or #220 Grit