2020 John Deere HH40C Hydraulic Concrete Hammer/Breaker Skid Steer Attachment, Universal Skid Steer Mounting Plate, Flat Faced Hydraulic Couplers, Flow Requirement: 10.6–18.5 GPM (40–70 L/min), Operating Pressure: 100–170 Bar (1,450–2,465 Psi), Impact Rate: 700–2,600 Blows/Min, Conical Breaker Bit: 12.5” Long X 2.25” Diameter, SN: 1T0HH40CKK0000658