You may recall [JohnnyQ90]’s first attempt at a vacuum powered rotary tool. That incarnation ... machined aluminum from soda cans to make a mini Tesla turbine. His builds have come a long ...

These brilliant ideas may just inspire a renaissance of rotary tool use in your shop and beyond. Honestly, there isn’t much ...

Rotary hammer drills blast through concrete, stone, and masonry with percussion-driven force, making them essential for heavy ...