3M™ High Performance Depressed Center Grinding Wheel
3M ID 60440282675. 3M Product Number. 3M™ High Performance Depressed Center Grinding Wheel T27 66548, 9 in x 1/4 in x 7/8 in, 10 per inner, 20 per case. 3M ID 60440282683. 3M ID 60440282683. 3M Product Number. 3M™ High Performance Depressed Center Grinding Wheel T27 Quick Change 66549, 5 in x 1/4 in x 5/8-11 in, 10 per inner, 20 per case.