STAHLWILLE 4018754141289 1/2 in Square Extension Bar, 255mm Overall

This extension is a 1/2in drive accessory designed to secure socket inserts and extend reach in confined or deep-recessed fastening tasks. It incorporates a QuickRelease locking mechanism that holds each connection in the tool chain, improving handling at difficult-to-access screw points and threaded holes while maintaining a Compact profile for ergonomic use.

• QuickRelease locking secures every connection and prevents loss
• Chrome finish resists corrosion and eases cleaning
• Alloy steel construction provides heavy-duty durability
• Square drive 1/2 inch ensures direct torque transfer
• Complies with DIN 3123 and ISO 3316 for standardised interfacing

• Suitable for assembly work in automation equipment maintenance
• Ideal for electrical panel and switchgear fastening tasks
• Used for accessing long recessed bolts in mechanical assemblies
• Can be used with socket sets for electronics enclosure servicing

A QuickRelease system mechanically locks each link between ratchet, extension and socket insert to stop unintended separation under load.

The bar is manufactured from alloy steel and finished with chrome plating to reduce surface wear and resist mild corrosion.

The packed length is 255mm with packed width and height both 25mm, and gross weight 0.350 kg.