This is a M14 21mm deep impact socket from Kielder is made from high quality Chrome Molybdenum steel. Perfect for use with ½” impact wrenches, ideal for wheel nuts. Strong and robust inner wall for durability, whilst maintaining slimline outer diameter gives easy access to sunken wheel nuts. Even weight distribution along the socket length to impart maximum impact.

Specifications:
Size / Fastening: 21mm / M14
Outer Diameter: 29.6mm
Hex Wall Thickness: 4mm (Flat) / 2.7mm (Corner)
Square Drive Wall Thickness: 8.1mm (Flat) / 6mm (Corner)
Length: 78mm
Weight: 250g