ER40 Collet 8.0mm (.314-.275)
ER40 Collet 8.5mm (.334-.315)
ER40 Collet 9.0mm (.354-.314)
ER40 Collet 9.5mm (.374-.354)
ER40 Collet 9/16" (.563-.531)
ER40 Collet 9/16" (.563-.547) Mechanical Coolant Seal