ER40 Collet 6.0mm (.236-.196)
ER40 Collet 6.5mm (.255-.236)
ER40 Collet 7.0mm (.275-.236)
ER40 Collet 7.5mm (.295-.276)
ER40 Collet 7/16" (.437-.406)
ER40 Collet 7/16" (.437-.421) Mechanical Coolant Seal