ER20 Collet 7.5mm (.295-.276) Mechanical Coolant Seal
ER20 Collet 7/16" (.437-.406)
ER20 Collet 7/16" (.437-.422) Mechanical Coolant Seal
ER20 Collet 7/32" (.219-.187)
ER20 Collet 7/32" (.219-.187) Mechanical Coolant Seal
ER20 Collet 8.0mm (.314-.275)