ER40 Collet 21.5mm (.846-.826) Mechanical Coolant Seal
ER40 Collet 21/32" (.656-.625)
ER40 Collet 22.0mm (.866-.826)
ER40 Collet 22.0mm (.866-.846) Mechanical Coolant Seal
ER40 Collet 22.5mm (.885-.846) Mechanical Coolant Seal
ER40 Collet 23.0mm (.905-.866)