Black+Decker Scorpion 400W Corded Reciprocating saw KFBES850K-BQGB Product information The Black+Decker 400 watt Scorpion is a multifunction saw that operates both as jigsaw and a powered handsaw. The saw, which can make up to 5500 strokes per minute, is ideal for cutting different materials such as wood, metal and plastic. The blade of the product can be changed easily and it comes with safety lock switch.