Hardinge Lathe Collets and Chuck lot of 25 Collets. 17 round collets from 3/8" to 1-3/8" and 4 Square Collets: 5/8", 3/4", 7/8", 1" and 4 hex collets, 3/4", 7/8", 1-3/8", 1-1/4".