Jewellers Tools Clock Key Set with Winged Brass Spider & Star Pair, Sizes 2-11

THIS IS A SET OF 10 CLOCK KEYS. KEY ONE NUMBERS 2, 4, 6, 8, 10 HOLE SIZES ARE 2.75, 3.25, 3.75, 4.25 AND 4.75MM. KEY 2 NUMBERS 3, 5, 7, 9, 11 HOLE SIZES ARE 3.0, 3.5, 4.0, 4.5 AND 5MM