--Contains sizes: 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 32, 36mm\n--This range of impact sockets are from the Britool Hallmark range and are manufactured from the highest quality Chromium Molybdenum Steel.\n--Heat treated to ensure that they conform to the highest possible standards of durability.\n--These sockets are suitable for use with all 1/2\"" square drive air and power tools.\n--All Britool impact sockets incorporate a Stress Relief Drive system - increasing maximum applicable torque and reducing fastener damage.\n--Each socket has a 12 sided bi-hexagon profile\n--There is also a hole in each side of the socket for use securing with a pin and ring if required.\n--These sockets are laser marked with the Britool Hallmark \""B\""  logo and part number.\n--From the \u201CBritool Hallmark\u201D range, with their distinctive Hallmark Britool \""B\"" and shown on the tools\n--This range was introduced in the 1980\u2019s aimed at th.