Accupro 778622 Rigid Tapping Chuck BT40 7/8 Inch

Product Description

The ACCUPRO 778622 is a rigid tapping chuck with a taper shank interface designed for precision tapping operations on CNC machining centers. It accepts a BT40 taper connection on the modular side and handles tap capacities from 5/16 inch up to 7/8 inch, covering a broad range of common tap sizes in one holder. The chuck features a quick-change design that allows tap adapters to be swapped without removing the holder from the spindle. With a projection of 3.74 inches and a Size 2 tap adapter, this unit suits applications where consistent thread depth and rigid tapping cycles are required.

This tapping chuck is suited for use on BT40-spindle CNC machining centers in production and job-shop environments. Rigid tapping mode, available on most modern CNC controls, is required for proper use. The holder is appropriate for tapping ferrous and non-ferrous materials across general-purpose machining, mold making, and fixture work. Licensed machinists and CNC setup technicians are the primary users. Through-coolant is not supported, so flood or mist coolant delivery at the workpiece is the standard approach.

Key Features

• Rigid tapping style for synchronized spindle tapping cycles
• BT40 taper shank for direct mounting to BT40-spindle machining centers
• Tap capacity range from 5/16 inch to 7/8 inch
• Quick-change tap adapter interface for fast tooling changeovers
• Size 2 tap adapter compatibility
• Projection of 3.74 inches for reach into standard workpiece setups

Compatibility

Designed for use with BT40-spindle CNC machining centers that support rigid tapping mode. Accepts Size 2 quick-change tap adapters.

Installation Notes

Installation and tool changes must be performed with the machine in an e-stop or powered-down state and the spindle fully secured. Use the appropriate BT40 pull stud and retention knob specified by the machine tool builder. Torque the retention knob to the machining center manufacturer's specification. Verify rigid tapping synchronization settings in the CNC control before running a tapping cycle.