19pc 3/8" Drive Impact Socket Set Bi-Hexagon / 12 Point Profile Britool Hallmark

The Britool Hallmark bi-hexagon impact socket range is engineered for professional-grade performance in demanding automotive and workshop applications. Manufactured from premium chromium molybdenum steel and heat-treated to exacting standards, these sockets offer exceptional strength, durability, and resistance to wear.

Designed for use with all 3/8" square drive air and power tools, each socket features a 12-sided bi-hexagon profile that ensures a secure grip on fasteners while minimising rounding or damage. The integrated Stress Relief Drive system maximises torque capacity while reducing fastener wear, providing reliable performance under heavy loads.

Each socket includes a ball retaining groove on every face of the square drive for secure engagement with ratchets and extensions. For applications requiring extra retention, a hole on each side allows use with pin and ring securing systems.

This range covers standard sizes from 6mm to 24mm, including 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, and 24mm. Each socket is laser marked with the Britool Hallmark logo and part number for easy identification, ensuring consistent quality and professional reliability.  Individual sockets also availbable separately as and when required.

Corresponding deep set also available - MDBMPSET19

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 and for the expected life of the tool. 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 items such as bits and repair kits.