ER20 Collet 12.0mm (.472-.452) Mechanical Coolant Seal
ER20 Collet 12.5mm (.492-.472) Mechanical Coolant Seal
ER20 Collet 13.0mm (.511-.472)
ER20 Collet 13.0mm (.511-.492) Mechanical Coolant Seal
ER20 Collet 13/32" (.406-.375)
ER20 Collet 13/32" (.406-.391) Mechanical Coolant Seal