With a few basic parts and a little work, you can turn an angle grinder into a small, sliding cutoff saw to accurately cut thin metal parts. What makes this project work are the clever carriage and handle assembles. These hold the grinder and allow it to slide back and forth, as well as rotate up and down. The assemblies slide along a hardwood rail, which in turn is connected to a sturdy support arm that’s bolted to a rock-solid base. It also has a wide metal channel at the center for added safety, and a two-position fence for greater versatility. All in all, it’s sure to add some precision to your metal-cutting operations.