Light weight design constructed with high strength steel to withstand full down pressure of boom Unmatched boom reaction and stability even at full reach over the side High efficiency and rotatable spherical (or beaver) cutters consume minimal power Simple, durable, high efficiency direct drive for years of trouble free service Super fast spooling (roughly 3 seconds) for minimal recovery time from stall The EX30 "SHARK"is our lightest commercial grade boom mounted mulcher and is intended to handle anything from grass to brush to whole trees (to 8 inch diameter) and stumps. Designed for use on higher power mini and midi excavators and backhoes, the fixed tooth cutting drum, rotatable spherical (or beaver) cutters and high efficiency direct drive allow this compact mulcher to deliver impressive productivity and extreme durability in a lightweight package.