ER20 Collet 3.0mm (.118-.098)
ER20 Collet 3.5mm (.137-.098)
ER20 Collet 3/16" (.187-.156)
ER20 Collet 3/16" (.187-.183) Mechanical Coolant Seal
ER20 Collet 3/32" (.094-.078)
ER20 Collet 3/8" (.375-.344)