I've drilled thousands of holes in stainless steel, and I've found it's best to use a very slow speed. Once stainless gets too hot, it instantly hardens, and the game is over after that. A ...

Watch how I build a portable battery-powered welding machine using 40 lithium-ion batteries for a fully cordless, ...

The industry calls this benchmark the “operator factor,” basically arc-on time divided by total time, then expressed as a ...

“I’m a mechanic with a welding ticket and this thing works great.” ...