A-143240M1-AI Forged Guard, 2 ProngOne New Aftermarket Replacement Forged Guard, 2 Prong Fits Massey Ferguson Sickle Mowers This forged 2 prong sickle guard mounts on the cutter bar finger beam of Fits Massey Ferguson sickle mowers, guiding and protecting the reciprocating knife sections during cutting. Installed in a series across the full width of the cutter bar, these guards act as sacrificial wear parts absorbing contact with rocks and debris to keep your knife sections cutting