Scientific Cutting Tools TM480-18N Thread Mill 5/8-18 Unf

Product Description

The SCIENTIFIC CUTTING TOOLS TM480-18N is a straight flute thread mill engineered for cutting 5/8-18 UNF threads in both external and internal applications. Built from powdered metal with a TiCN coating, it delivers wear resistance and edge retention in ferrous and non-ferrous materials. The tool features 6 flutes, a 0.48-inch cutting diameter, and a 1/2-inch shank diameter. With a length of cut of 1.134 inches and an overall length of 4 inches, it is sized for CNC machining centers where helical interpolation is used to produce precision threads in a single setup. Machinists and tooling specialists in production and job shop environments are the primary users.

This thread mill is suited for use on CNC machining centers performing UNF thread milling operations on both external bosses and internal bores at the 5/8-18 thread size. The straight flute geometry and 18 TPI configuration make it appropriate for through and blind hole applications where thread quality and repeatability are required. It handles both external and internal thread forms, reducing the number of tools needed in a threading operation. Typical applications include aerospace, automotive, hydraulic manifold, and general precision machined component work.

Key Features

• Cuts 5/8-18 UNF threads in both external and internal configurations
• 6 straight flutes with 18 teeth per inch for consistent thread form
• TiCN coating improves surface hardness and wear resistance over uncoated tooling
• Powdered metal substrate provides toughness and fine grain structure for sharp edges
• 1/2-inch shank diameter for compatibility with standard ER and end mill holders
• No coolant-through design - suitable for flood or mist coolant delivery at the spindle

Compatibility

Designed for use in CNC machining centers capable of helical interpolation, accepting a 1/2-inch shank. Suitable for 5/8-18 UNF external and internal thread milling applications.

Installation Notes

Installation and use of this tool should be performed by qualified machinists or CNC tooling technicians. Secure the 1/2-inch shank in an appropriate tool holder torqued to the holder manufacturer specification before mounting in the spindle. Verify spindle RPM, feed rate, and helical interpolation path in the CNC program before cutting. Always ensure the machine is in a safe state and the spindle is fully stopped before changing or inspecting tooling.