Precise ER16 Collet Drill Chuck With JT33 Sleeve Hex Nut – 3903-6050

• 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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