ER20 Collet 23/64" (.359-.344) Mechanical Coolant Seal
ER20 Collet 25/64" (.391-.375) Mechanical Coolant Seal
ER20 Collet 27/64" (.422-.406) Mechanical Coolant Seal
ER20 Collet 29/64" (.453-.438) Mechanical Coolant Seal
ER20 Collet 3.0mm (.118-.098)
ER20 Collet 3.5mm (.137-.098)