These are Professional felling dogs (bumper spikes) for Stihl chainsaws. These felling dogs are oversized compared to stock to give you better sticking power and leverage in thick barked trees. Pro Safety felling dogs are made of 1/8" heat treated steel. (inside and outside dogs). You will need to use your stock fasteners to attach them. Once you fit a set on, you will wonder how you went without them so long.
Fits Stihl model 461
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