This counter-rotational metal bond diamond puck is a 40 Grit, 4 Seg. The 501040-SP metal bond diamond fits all of National’s counter-rotational grinders and is

This counter-rotational metal bond diamond wedge is a 40 Grit, 2 Seg. The 501040-S metal bond diamond fits all of National’s counter-rotational grinders and is

This counter-rotational metal bond diamond puck is a 30 Grit, 10 Seg. The 501030-10 metal bond diamond fits all of National’s counter-rotational grinders

This counter-rotational metal bond diamond puck is a 25 Grit, 4 Seg. The 501025-SP metal bond diamond fits all of National’s counter-rotational grinders and is

This counter-rotational metal bond diamond puck is a 25 Grit, 4 Seg. The 501025-HP metal bond diamond fits all of National’s counter-rotational grinders and is