Parlec 10-031 Tapping Adapter 5/16 in Numertap 100

Product Description

The PARLEC 10-031 is a quick-change tapping adapter designed for use in CNC machining and production tapping applications. Built as part of the NUMERTAP 100 series, it accepts a 5/16 inch tap with a shank diameter of 0.318 inches and a square drive size of 0.238 inches. The adapter features a 0.75 inch outside shank diameter and a 1.18 inch flange diameter, providing stable, repeatable seating in the toolholder. It is installed and serviced by machinists and toolroom professionals working in precision metal-cutting environments.

This adapter is suited for tapping operations on CNC machining centers and rigid tapping setups where quick tool changes and consistent tap alignment are required. The NUMERTAP 100 series is a common platform in production shops running moderate tap sizes. The 10-031 accommodates a size 1 adapter designation, making it appropriate for lighter-duty tapping work where 5/16 inch taps are standard. Coolant-through capability is not available on this model.

Key Features

• Quick-change interface for fast tap replacement without removing the toolholder
• Accepts 5/16 inch tap with 0.318 inch shank diameter and 0.238 inch square size
• 0.75 inch outside shank diameter for secure holder engagement
• 1.18 inch flange diameter provides stable, repeatable positioning
• 0.28 inch projection keeps the tap close to the holder face for rigidity
• Part of the standardized NUMERTAP 100 series platform

Compatibility

Designed for use with PARLEC NUMERTAP 100 series toolholders that accept a size 1 tapping adapter for 5/16 inch taps.

Installation Notes

Installation is performed by a machinist or toolroom technician. Ensure the machine spindle is fully stopped and the control is in a safe state before changing adapters. Verify that the tap shank diameter and square size match the adapter specifications before seating the tap. Follow the machine tool builder guidelines and applicable shop safety procedures when securing tooling.