Parlec 7716-3-118 Tapping Adapter Numertap 770

Product Description

The PARLEC 7716-3-118 is a quick-change tapping adapter designed for use with CNC machining centers and rigid tapping applications. It belongs to the NUMERTAP 770 series, engineered for accurate and repeatable tap engagement in production environments. The adapter features a 1.021-inch tap shank diameter and a 0.766-inch tap square size, providing a secure mechanical drive connection. With a 1.25-inch outside shank diameter and a 3.7-inch projection, it positions the tap at a consistent working depth. Licensed machinists, toolroom technicians, and CNC setup personnel are the primary installers of this component.

This tapping adapter is suited for production machining operations where quick tool changes are required to maintain cycle time and repeatability. The NUMERTAP 770 series is a common choice for shops running high-volume tapping cycles on machining centers. It does not support coolant-through delivery, making it appropriate for applications where flood or mist coolant is applied externally. Typical installations involve standard tapping chucks or toolholders compatible with the NUMERTAP 770 interface.

Key Features

• Quick-change design reduces tap changeover time during production runs
• Tap shank diameter of 1.021 inches for positive shank engagement
• Tap square size of 0.766 inches provides reliable torque transfer
• Outside shank diameter of 1.25 inches for consistent holder fitment
• Projection of 3.7 inches positions tap at working depth in standard setups
• Part of the NUMERTAP 770 series for broad system compatibility within that tooling family

Compatibility

Designed for use within the PARLEC NUMERTAP 770 quick-change tapping system. Compatible with toolholders and adapters that accept the NUMERTAP 770 interface with a 1.021-inch tap shank diameter and 0.766-inch tap square size.

Installation Notes

Installation is performed by qualified CNC machinists or toolroom technicians. Ensure the machining center spindle is powered down and all motion is stopped before changing tapping adapters. Verify that the mating toolholder interface is clean and free of chips or debris before seating the adapter. Coolant-through is not supported on this adapter, so confirm the coolant delivery method is compatible with the application before setup.