3M Cubitron II Hookit Paper Disc 732U, 150+ C-weight, 6 in x NH, Die 600Z, 50 per inner, 250 per case. The triangular shaped ceramic mineral is designed to slice through the substrate, rather than gouging or ��plowing" like conventional abrasives, resulting in a disc that cuts up to 2x as fast and lasts up to 4x as long as conventional abrasives.
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