3/8"SD AF 7/16" DEEP HEXAGON IMPACT SOCKET, LENGTH 55MM FROM BRITOOL MDHP437

This range of impact sockets are from the Britool Hallmark range and are manufactured from the highest quality alloy steel.
Heat treated to ensure that they conform to the highest possible standards of durability.
These sockets are suitable for use with all 3/8 inch sq dr air and power tools.
All Britool impact sockets incorporate Britool's unique Stress Relief Drive system - increasing maximum applicable torque and reducing fastener damage.
Each socket has 6 sided hexagon profile and a ball retaining groove in each face of the square drive. This ensures a positive fit with all 3/8 inch sq dr accessories.
These sockets were made in the Britool UK manufacturing plant before it closed so this range is now very rare.
THE HALLMARK RANGE WAS DEVELOPED BY BRITOOL IN THE 80'S FOR THE AUTOMOTIVE AFTERMARKET. IT HAS BEEN THE PROFESSIONALS CHOICE EVER SINCE. EACH TOOL IS STAMPED WITH A HALLMARK, YOUR GUARANTEE OF QUALITY.
NB: Picture is generic and is used to illustrate item. It may be of a different size.