12 pcs ER25 collets included ER11ER16ER20ER25ER32ER40 Spring Collet Set

  
12 pcs ER25 collets (1/8", 3/16", 7/32", 1/4", 5/16", 3/8", 13/32", 7/16", 1/2" 17 /32", 9/16", 5/8"). 7 pcs ER11 collets (1/16", 3/32", 1/8", 5/32" 3/16", 7/32" 1/4).

15pcs ER11 collets (1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 6.5mm, 7mm, 1/8", 1/4").