Collet Sealed ER 20 .3150″ (8mm)

Collet Sealed ER 20 .3438″ 11/32″

Collet Sealed ER 20 .3540″ (9mm)

Collet Sealed ER 20 .3750″ 3/8″

Collet Sealed ER 20 .3930″ (10mm)

Collet Sealed ER 20 .4063″ 13/32″

Collet Sealed ER 20 .4330″ (11mm)

Collet Sealed ER 20 .4375″ 7/16″

Collet Sealed ER 20 .4720″ (12mm)

Collet Sealed ER 20 .5000″ 1/2″

Collet Sealed ER 20 .5110″ (13mm)

Collet Set Sealed ER 20 4-13mm (10 pcs)