110V welder. Died after 3 months. Replaced under wty. Replacement died 1 month later.
220V welder. Toast after 4 months.
7" Sander/Polishers. Both still running after 2 years but had to replace brushes which were supplied as spares.
Metal Shears. Lasted about 18 months. User malfunction caused premature death
2 1/2 ton jack. Dangerous to say the least. Still works but take your life in your own hands when lowering.
Sawzall. Problems after 3rd time using it.