Accupro QCK-2 CAT-40 Tapping Chuck CAT40 M8 to M20

Product Description

The ACCUPRO QCK-2 CAT-40 is a rigid-style tapping chuck with a CAT40 taper shank connection, designed for precision tapping operations on CNC machining centers. It delivers a 3.543-inch projection from spindle face and supports a tap capacity range of M8 to M20 (up to 7/8 inch), making it suitable for a broad range of threading applications in production environments. The quick-change interface allows fast adapter swaps without removing the chuck body from the spindle, reducing cycle time during multi-tap operations. Through-coolant capability keeps the tap and workpiece cool during deep-hole tapping, extending tool life and improving chip evacuation.

This tapping chuck is intended for use on CNC vertical and horizontal machining centers equipped with CAT40 spindle tooling. It is well-suited for production shops, job shops, and toolrooms running rigid tapping cycles in ferrous and non-ferrous materials. The Size 2 adapter interface is a standard modular connection used across a range of tap holder adapters. Machinists and CNC setup technicians are the primary installers and users of this tooling.

Key Features

• Rigid tapping style for synchronized spindle tapping without a floating mechanism
• CAT40 taper shank for compatibility with standard CAT40 spindle tooling systems
• Quick-change design allows rapid tap adapter swaps at the machine
• Through-coolant support for improved chip evacuation and tool life in deep-hole tapping
• M8 to M20 tap capacity (up to 7/8 inch) covers a wide range of threading tasks
• Size 2 modular adapter interface for broad tap holder compatibility

Compatibility

Designed for use with CAT40 spindle tooling systems. Accepts Size 2 tap adapters. Tap capacity ranges from M8 to M20 (7/8 inch maximum). Specific machine and adapter compatibility should be verified against the machine spindle specification and the adapter manufacturer's sizing chart.

Installation Notes

Installation should be performed by a qualified CNC machinist or toolroom technician familiar with CAT40 tooling assembly procedures. Power down and lock out the machining center before mounting or removing the chuck from the spindle. Use a torque-rated pull stud and ensure the taper interface is clean and free of chips or burrs before seating. Verify through-coolant port alignment with the machine spindle coolant supply before operation.