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What size is an ER32 collet?
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What does er stand for in collets?
ER Collet Sizes ; 27/32", 0.827—0.866", 21—22 mm ; 7/8", 0.866—0.906", 22—23 mm ; 15/16", 0.906—0.945", 23—24 mm ; 31/32", 0.945—0.984", 24—25 mm ...