Pearl Abrasive 4-1/2″ by 1/4″ by 5/8-11″ DC4510TH Depressed Center Grinding Disc ( 10/box ) | Welding Supply Of America
Grinding Wheel for Grinders,Grinding Wheel for Metal ,Aggressive Grinding for Metal (25 Pack, 4.5 Inch,1/4" Thick, 7/9"): Amazon.com: Industrial & Scientific