Sealey AK55022 Impact Extension Bar 250mm 1/2"Sq Drive

Drop-forged steel extension bars.
Suitable for use on all types of impact tool.
Chrome Vanadium steel used on 3/8" and 1/2"Sq drive size.
Chrome Molybdenum steel used on 3/4" and 1"Sq drive sizes which demand higher torque rates.
Phosphate finish for added corrosion resistance.
Spring-ball socket retainer and drilled head to accept retaining pin where applicable.