Parlec 7716-087 Tapping Adapter Numertap 770

Product Description

The PARLEC 7716-087 is a tapping adapter from the NUMERTAP 770 Series, designed for use with CNC machining centers and tapping heads where quick-change tooling is required. The adapter features a tap shank diameter of 0.697 inches and a tap square size of 0.523 inches, making it suited for mid-range tap sizes in production tapping operations. With a projection of 2.25 inches and an outside shank diameter of 1.25 inches, the 7716-087 provides rigid, repeatable tap positioning. Machinists and tooling technicians install this adapter as part of a modular quick-change tapping system to reduce setup time and maintain tap alignment during rigid or tension-compression tapping cycles.

This tapping adapter is intended for use in metalworking environments where production tapping efficiency is critical. It fits into the NUMERTAP 770 Series quick-change tooling system and is appropriate for both vertical and horizontal machining center applications. The adapter accommodates taps within its specified shank and square dimensions and is suited for ferrous and non-ferrous material tapping in job shop and production floor settings. Coolant-through capability is not included in this adapter. Installation is performed by qualified machinists or tooling setup personnel following the machine tool builder and toolholder manufacturer guidelines.

Key Features

• Tap shank diameter of 0.697 inches for precise tap seating
• Tap square size of 0.523 inches to engage tap drive securely
• Quick-change interface for fast tap changeovers without removing the holder from the spindle
• Projection of 2.25 inches provides clearance in deep-hole or obstructed tapping applications
• Outside shank diameter of 1.25 inches for stable, concentric mounting
• Part of the NUMERTAP 770 Series modular tooling system

Compatibility

Designed for use with the PARLEC NUMERTAP 770 Series quick-change tapping system. Compatible with taps having a shank diameter of 0.697 inches and a square drive size of 0.523 inches.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician familiar with CNC toolholder systems. Ensure the machine spindle is fully stopped and the tool changer is in a safe state before installing or removing the adapter. Follow the NUMERTAP 770 Series assembly procedures for seating the quick-change interface to ensure proper axial and radial engagement. Verify tap square engagement and projection clearance before running the tapping cycle.