29 Pcs ER40 Precision Spring Collet Set Milling Lathe CNC Chuck Bit Holder Tool

  
ER40 (29Pcs) Collet Set imperial sizes High Precision CNC Spring Clamping Collets. 29 PCS PRECISION ER40 COLLETS including: 1/8", 5/32", 3/16", 7/32", 1/4", 9/32", 5/16", 11/32", 3/8", 13/32", 7/16", 15/32", 1/2", 17/32", 9/16", 19/32", 5/8", 21/32", 11/16", 23/32", 3/4", 25/32", 13/16", 27/32", 7/8", 29/32", 15/16", 31/32", 1.