Accupro QA-2 1/4 Tapping Adapter 1/4 in Tap Size 2

Product Description

The ACCUPRO QA-2 1/4 is a quick-change tapping adapter designed to hold 1/4 inch taps in compatible tap holders and machine tool setups. With a tap shank diameter of 0.255 inches and a tap square size of 0.191 inches, it provides a secure, precise interface between the tap and the drive system. The adapter features a projection of 0.4331 inches and an overall length of 1.811 inches, placing the tap at a consistent depth for repeatable threading operations. It belongs to the Series WE 2 family and is installed by machinists and tool-and-die technicians in CNC and manual tapping applications.

This adapter is suited for production tapping environments where quick-change capability reduces changeover time between tap sizes. It is used in machine shops, manufacturing facilities, and maintenance operations requiring accurate, repeatable thread forming. The Series WE 2 designation identifies it within a standardized system of interchangeable tapping components. Coolant-through capability is not included in this adapter. Package quantity is one unit per order.

Key Features

• Quick-change design for fast tap swaps without removing the holder from the spindle
• Tap size: 1/4 inch with Adapter Size 2
• Tap shank diameter: 0.255 inches for a precise drive fit
• Tap square size: 0.191 inches for positive torque engagement
• Projection of 0.4331 inches for consistent tap positioning
• Series WE 2 for compatibility within a standardized quick-change tapping system

Compatibility

Designed for use with Series WE 2 quick-change tapping systems accepting a 1/4 inch tap with a 0.255 inch shank diameter and 0.191 inch square drive size.

Installation Notes

Installation is performed by qualified machinists or tool-room technicians. Ensure the spindle and any power source are fully de-energized and the machine is in a safe-stop state before changing adapters. Verify that the tap shank diameter and square size match the holder specifications before seating the adapter. Follow machine manufacturer guidelines and applicable shop safety standards during setup.