Allied Machine TMAU0750-16 Thread Mill 3/4-16 Unf 4 Flute

Product Description

The ALLIED MACHINE AND ENGINEERING TMAU0750-16 is a solid carbide helical flute thread mill designed to cut 3/4-16 UNF threads in both internal and external applications. With 4 right-hand flutes and a cutting diameter of 0.495 inches, it produces accurate threads in a single helical pass. The 0.5-inch shank diameter provides solid tool holding in standard milling chucks and collets. A bright, uncoated finish suits a wide range of workpiece materials. This tool is intended for use by machinists and tooling professionals on CNC milling centers where thread milling is preferred over tapping.

This thread mill is suited for production and job-shop environments where 3/4-16 UNF threads are required in both through and blind-hole configurations. Its helical flute geometry allows it to mill internal bores as small as 1.0625 inches nominal diameter, making it viable for close-clearance applications. The tool handles both internal and external thread forms, reducing tooling inventory when both thread types appear on the same part. It is commonly deployed in aerospace, automotive, and general machining operations where thread quality and dimensional accuracy are critical.

Key Features

• Cuts 3/4-16 UNF internal and external threads in a single tool
• Solid carbide construction for rigidity and wear resistance
• 4 right-hand helical flutes for efficient chip evacuation
• 0.495-inch cutting diameter with 0.75-inch length of cut
• Bright, uncoated finish compatible with a broad range of materials
• No coolant-through requirement, simplifying setup on standard machines

Compatibility

Designed for use in CNC milling centers capable of helical interpolation; accepts standard 0.5-inch shank tool holders including end mill holders, collet chucks, and milling chucks. Minimum nominal bore diameter for internal threading is 1.0625 inches.

Installation Notes

Thread milling with this tool requires a CNC control capable of helical interpolation — confirm the program post and machine controller support this cycle before setup. Secure the 0.5-inch shank in a balanced, properly torqued tool holder per the machine tool manufacturer specifications. Verify workpiece fixturing is rigid to prevent chatter during the helical pass. Always verify thread pitch and form with a calibrated thread gauge after the first part.