Impregnated dresser are recommended for a great many dressing operations such as centerless and cylindrical grinding, surface grinding, straight-faces and some profile dressing, slotting, angular dressing and general purpose tool room applications.3A block 5/32” x 3/8″ x 1/4” high set at 0 degree angle7/16” diammeter x 1-1/4” long shank with four flatsBG-3A8F7. 30/40 Mesh grit size. BG-3A6F7. 20/30 Mesh grit size
