D.169 Set of 3 couplers

• Allows use of square drivers smaller than socket drive sizes:
– 1/4″ square drive + D.169RJ –> 3/8″ socket.
– 3/8″ square drive + D.169JS –> 1/2″ socket.
– 1/2″ square drive –> 3/4″ socket.
• Compactness means that fewer tools are needed for in situ maintenance
operations.
• Magnetic retainer and locking system (JS and SK).
• Knurl allows hand tightening where access is difficult.