Proto® manufactures industrial grade tools that ensure faster & easier work for the professional craftsman. Developed according to strict standards, Proto tools feature ergonomic advantages such as enhanced shock absorption and reduced slippage. Proto offers more than 4,000 tools that are specially engineered for heavy-duty industrial applications: sockets & ratchets, wrenches, torque wrenches, screw, bolt, stud & pipe extractors. Proto also offers tool storage for easy access to your equipment.