Tekton 1/4, 3/8, 1/2 Inch Hex Bit Socket Set, Rail, 22 Pieces (2-19 Mm)

Strong, Precise Hex Bits – Bits are made of S2 heat-treated steel and are machined to precise tolerances for an exact fit with hex fasteners Straight, Permanent Connection – The 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 Twist-to-Lock – Place sockets onto the clips to store them loosely, or twist them clockwise onto the clips to lock them in place