Parlec 7711-025 Tapping Adapter Numertap 700 Series

Product Description

The PARLEC 7711-025 is a quick-change tapping adapter designed for use in CNC machining centers and tapping operations where precise torque transmission and repeatable tool changes are essential. Part of the NUMERTAP 700 series, this adapter accepts a tap with a 0.255-inch shank diameter and a 0.191-inch square drive size, transmitting drive force cleanly through the square tang interface. The outside shank diameter is 1.25 inches, with a projection of 0.700 inches. Quick-change capability reduces setup time and supports high-production tapping cycles without full tool disassembly.

This tapping adapter is suited for metalworking shops running production tapping on vertical or horizontal machining centers. The NUMERTAP 700 series is a modular toolholding platform commonly used in shops requiring fast, repeatable tap changes across multiple operations. This adapter is installed by machinists and CNC setup technicians working with standard quick-change tooling systems. Coolant-through capability is not supported on this adapter.

Key Features

• Quick-change interface for fast, repeatable tap installation and removal
• Tap shank diameter: 0.255 inches for precise fitment
• Tap square size: 0.191 inches for positive drive engagement
• Outside shank diameter: 1.25 inches for secure machine spindle mounting
• Projection of 0.700 inches for controlled reach in tapping applications
• Part of the modular NUMERTAP 700 series toolholding platform

Compatibility

Designed for use with PARLEC NUMERTAP 700 series quick-change tapping systems. Accepts taps with a 0.255-inch shank diameter and a 0.191-inch square drive size.

Installation Notes

Installation is performed by a qualified machinist or CNC tooling technician. Ensure the machine spindle is fully stopped and the tool changer is in a safe state before mounting or removing the adapter. Verify that the tap shank diameter and square size match the adapter specifications before assembly. Follow the toolholder manufacturer guidelines for torque and retention when securing the adapter in the spindle.