The sockets can be used on a range of fasteners: 6pt, 12pt, star and square. Sadly instances of fraud are on the increase. SAE 9/32, 5/16, 11/32, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16 & 23/32. We make sure to keep our prices competitive by buying in bulk and keeping the overheads low.
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