ER Spring Collets are the only Clamping Collet System for combined milling, drill, reaming, tapping and boring
ER Collets concentricity guaranteed to .0004"
Wide holding range of each collet requies fewer collets and changes-guarantees that undersize cutting tools can be held without sacrificing accuracy or gripping power
Unique self-releasing sytsem eliminates sticking
Flute holding capabilities for highest concentricity and clamping power
ER Mini-Collet Chucks allow for machining in tight locations with reduced outside nose diameter