Precise CAT40 Milling Chucks

• Integrated needle bearing provides more contact surface to provide uniform gripping force and prevent distortion from clamping.
• Provides up to 5x gripping power than ER & TG collet chucks.
• Ideal choice for roughing and heavy milling using solid carbide and indexable end mills.
• Unique dust-proof design to extend tool holder life.
• Taper precision ground to ATC3 standard and taper and flange hardened to 54-56Rc.
• Balanced to G2.5 30,000 RPM suitable high speed machining process.
• Concentricity at the collet bore within 0.00012”/3 micron and concentricity within 0.0004” at 4xD.
• Collet wrench is included.

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