Suitable for following groove nut sizes: 1/2" drive: KM4 - KM5 - KM6 - KM7 - KM8 3/4" drive: KM9 - KM10 - KM11 - KM12. Groove Nut Socket Set 1/2 & 3/4" Drive. We are currently working towards building up a craft and hobbyist range of goods and tools.
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