1900 MacKissic, 12PTE1100 Chippers / Shredders, 11.5 Gross Torque Power Briggs & Stratton OHV engineElectric Start (battery included)Chipping capacity up to 3 1/2" chipper w/ adj discharge24 reversible hardened steel hammers1" screenChipping 2714 hits per minute2 year consumer warranty, 90 day commercial warranty4 Wheeled Wagon Style