Britool England 3/8"SD Standard Hexagon AF Impact Socket Range 5/16" - 3/4"

These Britool Hallmark 3/8" square drive impact sockets are original UK-manufactured tools from the Britool Hallmark range, made before the factory closure. Crafted from premium Chrome Molybdenum Alloy steel, these sockets are designed for use with impact wrenches and high-power pneumatic tools, providing exceptional strength, durability, and reliability for automotive, industrial, and workshop applications.

Each socket features a ball retaining groove on every face of the square drive to ensure a secure fit with all 3/8" accessories. A pin-and-ring hole allows the socket to be safely secured during high-torque operations. The 6-point Hexagon Stress Relief Drive reduces fastener damage while allowing higher torque loads to be applied, making these sockets ideal for professional and heavy-duty use.

This range is now rare and collectible, with limited AF Imperial sizes available from 5/16" to 3/4".

Please note: the image shown is generic and used to illustrate the design; the actual size supplied will match your order.

The HALLMARK range was developed by Britool in the 80's for the automotive aftermarket. it has been the professional’s choice ever since. Each tool is marked with the Britool hallmark  your guarantee of quality.

The Britool Hallmark guarantee covers against defective materials and/or workmanship when used for the purpose for which they were designed. In the unlikely event that a product fails during normal use, it will be repaired or replaced. The guarantee does not extend to fair wear & tear, moving parts such as ratchet mechanisms, or consumable bits etc.