Socket extension bar Proline 9033326 1/2" drive 17 mm

Socket extension bar Proline 9033326 with a 1/2" drive and 17 x 78 mm dimensions. The extension is designed to extend reach for sockets in tight or recessed spaces and to provide compatible connection with 1/2" square-drive sockets. Made of chrome-molybdenum steel (CrMo) for improved durability and reliable performance in demanding conditions.

Advantages

The Proline 9033326 extension bar features a chrome-molybdenum construction that increases service life, tensile strength and yield limit compared with standard tool steels. It includes specially rounded profiles in the blunt corners between working faces (PRO-DRIVE system) to reduce concentrated point loads on internal edges. The square drive is compatible with most locking mechanisms used in sockets.

Suitable for

• Extending reach of 1/2" drive sockets in tight or recessed areas
• Automotive repair and maintenance
• Mechanical and industrial service tasks
• DIY and household fastening jobs requiring extra reach or leverage

Key specifications

• Brand: Proline
• Model / MPN: 9033326
• Drive size: 1/2"
• Socket size: 17 mm
• Length: 78 mm
• Material: Chrome-molybdenum steel (CrMo)
• EAN: 4750959033326

How to use

Select a compatible 1/2" socket, push it onto the extension bar's square drive until it locks, then attach the extension to your ratchet or pneumatic drive. Use the assembly to reach recessed or obstructed fasteners; apply torque as required while ensuring the socket remains fully engaged on the fastener. Inspect the extension and socket for wear before use.

Usage recommendations

Use with compatible 1/2" sockets and appropriate drive tools. Avoid excessive impact beyond the tool's rated capacity and inspect for damage after heavy use. For pneumatic tools, follow the tool manufacturer's recommended torque limits and maintenance guidelines.