ER20 Collet 7.0mm (.275-.236)
ER20 Collet 7.0mm (.275-.255) Mechanical Coolant Seal
ER20 Collet 7.5mm (.295-.276)
ER20 Collet 7.5mm (.295-.276) Mechanical Coolant Seal
ER20 Collet 7/16" (.437-.406)
ER20 Collet 7/16" (.437-.422) Mechanical Coolant Seal