"In addition to steel blades oscillating blades, the sharpener will sharpen bi-metal and carbide (CBN or diamond grinding wheels) metal cutting blades. A set can be easily added to the teeth using set pliers. Ground blades are actually quite sharp. The sharpener is primarily for pros who purchase quality name-brand blades. It will also sharpen circular saw blades, reciprocating saw blades, hole saws, drill bits, step drill bits, masonry drill bits, and more in both carbide and steel."