ER11 Collet 3/64" (.047-.031)
ER11 Collet 4.0mm (.157-.137)
ER11 Collet 4.0mm (.157-.137) Mechanical Coolant Seal
ER11 Collet 4.5mm (.177-.157)
ER11 Collet 4.5mm (.177-.157) Mechanical Coolant Seal
ER11 Collet 5.0mm (.196-.177)