Precise Jacobs Taper ER Collet Sleeve & Drill Chucks

• Precision ground & hardened for accuracy and precision.
• Superior to keyed and keyless drill chucks in concentricity and holding power.
• ER collet sleeves provide rigid & accurate holding of ID tooling.
• These collet sleeves feature ground shanks and tapers.
• They are compatible with standard Jacobs taper spindles.
• They can be used for coolant-thru applications.
• Maximum RPM is 8,000.
• T.I.R. is <= .0002".
• Superior Finish.

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