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The ACCUPRO 1527332 is a hydraulic tool holder chuck designed for precision CNC milling and machining center applications. It features a CAT40 taper shank connection and accepts tooling with a 1/2 inch bore diameter. The hydraulic clamping mechanism delivers consistent radial runout performance with a TIR of 0.000010 inches, making it well suited for finishing passes and tight-tolerance work. Through-coolant capability supports extended tool life when machining ferrous and non-ferrous materials. Licensed machinists and CNC setup technicians are the primary installers of this holder in production shop environments.
This holder is intended for use in CAT40-spindle vertical and horizontal machining centers performing milling, drilling, and reaming operations that demand high rotational accuracy. With a balanced speed rating of 25,000 RPM, it is suitable for high-speed machining applications in both job shop and production settings. The clamping depth of 46.00 mm provides secure tool engagement, and the 64.00 mm projection suits standard reach requirements without excessive overhang. This part replaces the previously catalogued SKU 56509599.
Designed for use in CAT40-spindle machining centers. Replaces SKU 56509599 per manufacturer documentation.
Installation should be performed by a qualified CNC machinist or tooling technician following the machine tool manufacturer's spindle and toolholder service procedures. Ensure the spindle is fully de-energized and the machine is in a safe lockout state before changing toolholders. Clean the CAT40 taper and spindle bore thoroughly before seating the holder to prevent seating errors that affect runout. Hydraulic holders require a dedicated hydraulic chuck key for actuation and should not be over-pressurized beyond the manufacturer's specified clamping range.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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