ER40 Collet 19.5mm (.767-.748) Mechanical Coolant Seal
ER40 Collet 19/32" (.594-.563)
ER40 Collet 20.0mm (.787-.748)
ER40 Collet 20.0mm (.787-.767) Mechanical Coolant Seal
ER40 Collet 20.5mm (.807-.787)
ER40 Collet 20.5mm (.807-.787) Mechanical Coolant Seal