Wera Tool-Check Automotive 1, 38 pieces38 piece set. Very compact tool set for manual and machine use. The green locking elements of the Tool Check secure the tools during transport. Includes one 1 4" bit ratchet in drop forged solid steel design. Fine toothing mechanism (60 teeth) for a small return angle of 6 for precise working. Easy clockwise counterclockwise switching. Ergonomically shaped ratchet head and lever. 1 4" sockets can also be used with the Wera 870 1 adapter (1 4" external