STIHL shredder vacs are all about shredding yard waste without shredding your budget. Each STIHL shredder vac is actually two powerful tools in one: A powerful shredder capable of transforming the equivalent of 14 bags of dry leaves into a single bag of clippings, as well as a fuel-efficient blower. And it comes standard with the necessary parts to convert easily to a handheld blower and back to a shredder, depending on your task.