Spline: M4, M5, M6, M8, M10 & M12; Ribe: RM5, RM6, RM7, RM8, RM9 & RM10. A low profile 72 tooth ratchet ring spanner, together with a set of 38 interchangeable bits which fit directly into the ratchet head without the need for a bit holder, allowing it to be used in hard to reach areas.
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