Pedros tutto multi chain tool the tutto multi chain tool blends ergonomic organic design and noticeable industrial stature with patented innovations like the fit dial and rpgthe fit dial is used to adapt your tutto multi chain tool to almost any modern chainthe rpg or retracting pin guide is a multi purpose feature the spring loaded rpg supports the pin up to the face of the chain eliminating broken pins and ensuring perfect alignment every timecompatible with almost any chain from single s