Ratcheting wrench for fastener e.g. screw, has drive unit mounted in hole of head and includes flange at one end for securely holding fastener-driving unit to provide joint rotation when drive unit is turned

摘要

The wrench has a drive unit (20) mounted in a hole (13) of a head (11) and having a flange at one end for securely holding a fastener-driving unit for joint rotation when the drive unit is turned. A retainer mounted around the end of the drive unit includes two resilient portions extending into a hole (22) through the slots for holding the drive unit in the hole (13) and releasably holding driving unit in the hole (22).