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The ACCUPRO 587058 is a quick-change tapping adapter designed to hold Number 12 taps in a Number 1 adapter body. The shank diameter measures 0.22 inches, providing a secure, consistent fit in compatible quick-change tap holders. This adapter is used in production and maintenance machining environments where fast tap changes are required without removing the holder from the spindle. Machinists and toolroom technicians install this adapter to reduce cycle times and maintain tap alignment during threading operations on ferrous and non-ferrous materials.
This tapping adapter is suited for use in vertical machining centers, drill presses, and tapping machines where a quick-change tooling system is already in place. It is a single-piece adapter sold individually, making it a practical replacement or addition to an existing set. The Number 12 tap size and Number 1 adapter designation follow standard tap adapter sizing conventions used across common quick-change tapping systems.
Designed as a quick-change tapping adapter for Number 12 tap shanks measuring 0.22 inches in diameter, intended for use with Number 1 adapter-style quick-change tap holders. Consult your quick-change tapping system documentation to confirm adapter series compatibility before installation.
Installation is performed by qualified machinists or toolroom technicians. Power down and lock out the machine spindle before inserting or removing the tapping adapter. Ensure the tap shank is fully seated and the quick-change locking mechanism is fully engaged before operation. Inspect the adapter and tap shank for wear or damage at each tool change.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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