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• 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
• Clamping range is .039"