Amadeal 12-piece ER32 R8 Imperial Collet Set. Collet sizes - 1/16, 3/32, 1/8, 3/16, 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 13/16". Collets close down by 1mm. Excellent value .
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