Accupro 587074 Tapping Adapter 5/16 in Tap Size 2

Product Description

The ACCUPRO 587074 is a quick-change tapping adapter designed to connect a 5/16 inch tap to a No. 2 adapter drive. With a tap shank diameter of 0.318 inches, this adapter provides a secure, repeatable connection between the tap and the machine spindle. It is used in tapping operations on drill presses, CNC machining centers, and tapping machines where fast tap changes and consistent torque transfer are required. Machinists and tool-and-die technicians working in production or job-shop environments rely on this type of adapter to maintain thread quality and reduce setup time between tap changes.

This tapping adapter fits into standard No. 2 tapping head or collet chuck setups and accepts a 5/16 inch tap shank with a 0.318 inch diameter. It is suited for light-to-medium tapping operations in ferrous and non-ferrous materials. The quick-change feature allows the operator to swap taps without removing the adapter from the spindle, making it practical for repetitive production work where multiple tap sizes are cycled through on the same setup.

Key Features

• Quick-change design allows fast tap swaps without spindle removal
• Accepts 5/16 inch tap with a 0.318 inch shank diameter
• No. 2 adapter size for compatibility with standard tapping heads and collet chucks
• Unit weight of 1 pound supports stable, vibration-resistant operation
• Sold individually — package quantity of 1

Compatibility

Designed as a replacement or additional adapter for No. 2 tapping head setups accepting a 5/16 inch tap with a 0.318 inch shank diameter. Verify spindle adapter size and tap shank dimensions against your machine specifications before installation.

Installation Notes

Installation is performed by a machinist or tooling technician. Power down and lock out the machine spindle before installing or removing any tapping adapter. Confirm that the tap shank diameter and adapter size match the machine tapping head specifications prior to mounting. Do not exceed the tap size or torque rating of the tapping head the adapter is paired with.