Scientific Cutting Tools Tm 4-.7MM Tin/c Thread Mill M4

Product Description

The SCIENTIFIC CUTTING TOOLS TM 4-.7MM TIN/C is a straight flute, internal thread mill designed for cutting M4 x 0.70 metric coarse threads in a CNC machining environment. Built from submicron-grade solid carbide and finished with a TiN coating, this tool delivers consistent thread quality in ferrous and non-ferrous materials. It features a 0.110-inch cutting diameter and a 0.342-inch length of cut, with 3 straight flutes and a 1/4-inch shank diameter. Machinists and CNC programmers running metric thread operations will find this tool sized and specified for tight-tolerance internal thread milling applications.

This thread mill is suited for use in CNC machining centers performing internal metric thread operations on workpieces requiring M4 x 0.70 threads. Its straight flute geometry and compact cutting diameter make it appropriate for small-diameter thread milling where rigid setup and precise toolpath programming are essential. Typical applications include production machining, tool and die work, and precision component manufacturing where tapping is impractical or thread quality demands are high.

Key Features

• Submicron-grade solid carbide construction for rigidity and wear resistance
• TiN coating for improved surface hardness and tool life
• 3 straight flutes for stable cutting action in internal thread milling
• M4 x 0.70 metric coarse thread profile, no staggered tooth
• 0.110-inch cutting diameter with 0.342-inch length of cut
• 1/4-inch shank diameter for standard collet and toolholder compatibility

Compatibility

Designed for use in CNC machining centers capable of helical interpolation for internal metric thread milling. Minimum nominal thread diameter is M4. No coolant-through capability; external coolant or mist lubrication applies.

Installation Notes

This tool is installed by a machinist or CNC setup technician using a standard collet or end mill holder sized for a 1/4-inch shank. Verify runout at the toolholder before operation, as excessive runout will degrade thread quality and reduce tool life. Program the toolpath using helical interpolation with the correct pitch value of 0.70 mm. Ensure the spindle and all axes are at a safe home position before tool changes.