The two most common types of transfer associate degrees are the Associate of Arts (AA), a liberal arts degree, and the Associate of Science (AS), a liberal arts degree with a greater focus on math and sciences.
Diamond wheel. Diamond wheels are grinding wheels with industrial diamonds bonded to the periphery. They are used for grinding extremely hard materials such as carbide cutting tips, gemstones or concrete. The saw pictured to the right is a slitting saw and is designed for slicing hard materials, typically gemstones.
In this case, 97C is the grain/grit type (here 'C' probably is silicon carbide), 80 is the grit size, +F/-G indicates a zoned or graded wheel of an in-between hardness. -B11 is the bond (B11 is probably a resin bond). The DC is some process done to the wheel such as slots or grooves or holes or induced porosity.