Product Description
These impact sockets are from the Britool Hallmark range and are manufactured from the highest quality Chromium Molybdenum Steel.
The sockets are heat treated to ensure that they conform to the highest possible standards of durability, making them suitable for use with high power 3/8" drive pneumatic air tools and cordless power tools like impact wrenches.
Each socket has a 12 sided bi-hexagon profile and a ball retaining groove in each face of the square drive. This ensures a positive fit with all 3/8" drive accessories.
There is also a hole in each side of the socket for use securing with a pin and ring if required.
Available sizes: 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24mm.
Each socket is laser marked with the Britool Hallmark logo and part number.
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 or moving parts such as ratchet mechanisms.