Accupro 778594 Rigid Tapping Chuck CAT50 1-3/8 Inch

Product Description

The ACCUPRO 778594 is a rigid tapping chuck with a taper shank interface designed for CNC machining centers and tapping operations requiring precise thread cutting. Built with a CAT50 taper connection and a Size 3 adapter, this chuck accepts taps ranging from 13/16 inch minimum up to 1-3/8 inch maximum capacity. The 5.11-inch projection provides the clearance needed for deeper bores and fixture-heavy setups. Quick-change functionality is included, reducing tool changeover time on the floor. Weighing 1 pound, it is straightforward to handle during setup. Licensed machinists and CNC operators are the primary users of this toolholder.

This tapping chuck is suited for rigid tapping cycles on vertical and horizontal machining centers equipped with a CAT50 spindle interface. It supports pipe tap applications starting at 13/16 inch minimum capacity. Typical install scenarios include production shops running high-volume threading operations where through-coolant is not required. The quick-change design makes it practical for shops that rotate multiple tap sizes on a single setup without full toolholder swaps.

Key Features

• CAT50 taper shank for secure spindle engagement on compatible machining centers
• Rigid tapping style for synchronous tapping cycles requiring no floating compensation
• Tap capacity range from 13/16 inch to 1-3/8 inch, covering a broad range of thread sizes
• 5.11-inch projection for clearance in deep-bore and complex-fixture applications
• Quick-change interface reduces tap swap time during production runs
• Size 3 adapter for compatibility with corresponding tap holders and collets

Compatibility

Designed for use with CAT50 spindle machines requiring a rigid tapping chuck with a Size 3 tap adapter. Minimum tap capacity is 13/16 inch and maximum is 1-3/8 inch. Through-coolant is not supported by this toolholder.

Installation Notes

Installation should be performed by a qualified CNC machinist or toolroom technician. Ensure the spindle is fully powered down and the machine is placed in a safe state before mounting or removing the toolholder. Follow the machine manufacturer's draw bar torque and retention knob specifications for CAT50 toolholders. Verify tap adapter seating and confirm rigid tapping parameters in the CNC control before running the first cycle.