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Set of 11whitworth combination spanners.
Combination spanners have a broached ring at one end, and an open jaw at the other, both ends fit the same nut size.
The jaw and ring are offset at an angle of 15 degrees.

Size range . 1/8, 3/16, 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4IN. Whitworth