9 piece Impact XZN spline bit socket set. Part No 3968. M16, M18 - Length: 38mm, Drive: 1/2". Stubby style. M4, M5, M6, M8 - Length: 19mm, Drive: 1/4". US.PRO Industrial. M10, M12, M14 - Length: 30mm, Drive: 3/8".
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