Accupro 930-75016 Thread Mill 3/4-16 Internal 4 Flute Carbide

Product Description

The ACCUPRO 930-75016 is a solid carbide helical flute thread mill designed for cutting internal 3/4-16 UNF threads. It features four flutes and a TiAlN coating that improves heat resistance and extends tool life in demanding cutting applications. The shank diameter is 1/2 inch, the cutting diameter is 0.4950 inches, and the length of cut is 1.375 inches. This tool is used in CNC machining centers and is installed and operated by machinists and tooling specialists working with precision threaded bores. Micrograin carbide construction provides rigidity and wear resistance at high feed rates and spindle speeds.

This thread mill is suited for internal UNF thread milling operations in production and job shop environments. It is appropriate for use in materials where TiAlN coatings perform well, including alloy steels, stainless steels, and cast iron. The helical flute geometry supports smooth chip evacuation in blind and through-hole applications. At 16 teeth per inch, this tool matches the 3/4-16 UNF thread standard and is well suited for applications requiring tight thread tolerances in a single tool pass or circular interpolation strategy.

Key Features

• 4-flute helical geometry promotes efficient chip evacuation in internal thread milling
• TiAlN coating increases surface hardness and thermal resistance for extended tool life
• Micrograin solid carbide construction provides rigidity and dimensional stability
• 0.4950 inch cutting diameter matched to 3/4-16 UNF thread profile
• 1.375 inch length of cut accommodates deeper thread engagement requirements
• No coolant-through design; suitable for external flood or mist coolant delivery

Compatibility

Designed for internal 3/4-16 UNF thread milling with a minimum nominal bore diameter of 0.750 inches. Intended for use in CNC machining centers capable of helical interpolation with a 1/2 inch tool holder or collet.

Installation Notes

This tool is installed and operated by machinists in CNC machining centers. Secure the 1/2 inch shank in a properly sized collet or end mill holder and verify runout before cutting. Program the toolpath using circular interpolation consistent with the 3/4-16 UNF thread pitch. Follow the machine tool manufacturer and cutting tool manufacturer guidelines for feeds, speeds, and depth of cut for the workpiece material being threaded.