ER20 Precision Sealed Coolant Collet Set 3mm – 13mm (11 Pieces)

Improve machining accuracy and coolant efficiency with this premium ER20 Sealed Collet Set covering shank sizes from 1/8″ to 1/2″. Designed for through-coolant CNC machining applications, these precision-ground collets provide excellent gripping force, reduced coolant leakage, and outstanding concentricity. Manufactured from premium spring steel, the collets deliver long service life and reliable clamping performance for end mills, drills, reamers, and other straight-shank cutting tools. Compatible with all standard ER20 collet chucks manufactured to DIN 6499 / ISO 15488 standards, the set is supplied in a durable aluminum storage case for convenient organization and protection.