Strong, Precise Steel Bits – Bits are made of S2 heat-treated steel and are machined to precise tolerances for an exact fit with fasteners, Straight, Permanent Connection – Bits are pressed directly into the socket for a permanent connection that won't loosen over time or under stress, Large, Stamped Markings – Markings are permanently impressed into the material by a roll-stamp die and are clearly visible because of their extra-deep outline, Secure Drive Tool Engagement – Detent grooves and beveled edges provide a smooth and secure connection with the drive tool, Socket Organization Rails and Tray – The twist-to-lock clips on the rails hold sockets securely and can be repositioned anywhere along the rail.
