MAC TOOLS USA METRIC HEX SOCKET SET 7 Pc. 3MM TO 10MM Minus 9mm.  3/8" Drive. Set includes X3MMHS, X4MMHS, X5MMHS, X6MMHS, X7MMHS, X8MMHS, AND X10MMHS.  IN PRE-OWNED LIKE NEW CONDITION.   Please refer to pictures for condition.