Oscillating Saw / Multi-Tool Blades Sharpener. Sharpen hundreds of worn blades to get much longer use out of your blades. Sharp Pog is attached to a drill that spins the Sharp Pog. As the Sharp Pog spins, it grinds the oscillating blade down and creates new teeth. "When sharpening a blade, we found it easy to sharpen the blade using the Sharp Pog by leaving the blade on the multitool, just make sure you take the battery off the tool for safety. All we can say is it’s easy as slicing bread. The Sharp Pog quickly and easily brought the cheap blade back to life." As a note, this will NOT work with carbide blades.