Scientific Cutting Tools TM735-8N Thread Mill 1-8 Unc

Product Description

The SCIENTIFIC CUTTING TOOLS TM735-8N is a straight flute thread mill designed for cutting 1-8 UNC threads in both external and internal applications. Built from powdered metal and finished with a TiCN coating, this tool delivers wear resistance and thermal stability in demanding machining environments. It features 6 flutes, a 0.735 inch cutting diameter, and a 3/4 inch shank diameter. With a 1.3 inch length of cut and a 4 inch overall length, the TM735-8N suits a range of thread milling setups on CNC machining centers. Machinists and tool-and-die professionals working with 1-inch nominal diameter fastener threads will find this a direct fit for production and repair applications.

This thread mill is suited for use on CNC machining centers performing 1-8 UNC thread milling operations at 1-inch nominal diameter. It handles both external and internal thread profiles in a single tool, reducing setup changes. Typical applications include threading in ferrous and non-ferrous workpiece materials where a controlled, interpolated thread path is required. The TiCN coating supports use in harder materials and helps extend tool life in production environments.

Key Features

• Straight flute geometry for stable cutting action in both external and internal thread profiles
• TiCN coating increases surface hardness and reduces friction for extended tool life
• Powdered metal construction provides a fine-grain substrate with consistent hardness throughout
• 6 flutes deliver smooth chip load distribution at 8 teeth per inch
• 0.735 inch cutting diameter with 1.3 inch length of cut suits standard 1-8 UNC thread depth requirements
• No coolant-through design - compatible with external flood or mist coolant delivery

Compatibility

Designed for CNC thread milling of 1-8 UNC threads at a 1-inch minimum nominal diameter on machining centers accepting a 3/4 inch straight shank toolholder.

Installation Notes

Installation and operation should be performed by a qualified machinist familiar with CNC thread milling and G-code helical interpolation routines. Secure the shank in a properly sized collet or end mill holder and verify runout before cutting. Confirm spindle speed and feed rate parameters against the tool manufacturer's recommendations for the specific workpiece material before engaging the cut. Never exceed the rated length of cut when programming thread depth.