The kit contains two replacement parts to replace the plastic fiber cutting/peeling tool in LBB 4418/00. After installing/configuring 1260 shears, the shearing/peeling tool in LBB 4418/00 will lock automatically and stop working. In this case, the shear system must be replaced. LBB 4418/50 standby shear system (2 per set) for lbb4418/00 replacement shear system (2 per set). Order number LBB4418/50