Sealey-AK7973-Socket-Set-13pc-3-8-Sq-Drive-Total-Drive-Metric-Black-Series-Sealey-AK7973-Professional-Total-Drive-socket-set-Manufactured-from-hardened-and-tempered-heat-treated-Chrome-Vanadium-steel-Fully-polished-black-chrome-finish-with-machined-and-lacquered-surfaces-Can-be-used-on-a-wide-range-of-fasteners-All-are-suitable-for-Spline-Metric-Hex-and-Bi-Hex-with-many-also-equivalent-to-TRX-Star-Whitworth-Imperial-Hex-and-Imperial-Bi-Hex-Knurled-ring-for-extra-grip-with-greasy