ER20 Collet 5.0mm (.196-.193) Mechanical Coolant Seal
ER20 Collet 5.5mm (.216-.212) Mechanical Coolant Seal
ER20 Collet 5/16" (.312-.281)
ER20 Collet 5/16" (.312-.297) Mechanical Coolant Seal
ER20 Collet 5/32" (.156-.125)
ER20 Collet 5/32" (.156-.152) Mechanical Coolant Seal