OTC (6170 Metric Hex Socket Set - 7 Piece 7 piece set containing specialty bit sockets with Metric Hex family profiles This set gives anyone a removal or installation solution for Hex profiles Made with two piece construction S2 grade steel, one of the highest quality tool grade steels used in production, these bit sockets are designed for endurance A natural finish ensures that these sockets wont crack or peel like many chrome plated versions can Includes: 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, and 10mm sized sockets