Cordless vacuums are not what we think of traditionally as shop-vacs. They aren’t made to suck up heavy objects (though sometimes they will inhale things you don’t want them to move, like a light rug). Using these cordless systems for work other than regular house cleaning destroys the brush rollers, filters, dust bins, and microelectronics. If you need a vacuum for wood dust and chips or metal shavings, buy something designed for that. If you have excessive large pieces to clean away, you’ll want a bigger corded vacuum too. While cordless systems are not delicate little violets, they also are not behemoths designed for heavy debris.