Scientific Cutting Tools SPTM060 Thread Mill 56-80 Tpi

Product Description

The SCIENTIFIC CUTTING TOOLS SPTM060 is a single profile thread mill designed for cutting both internal and external threads in the 2-56 to 2-80 thread size range, covering 56 to 80 threads per inch (TPI). Built from submicron-grade solid carbide, this tool delivers the rigidity and wear resistance needed for precision threading in small-diameter applications. It features a 0.06-inch cutting diameter, a 3/16-inch shank diameter, and a 2-inch overall length, making it well-suited for threading operations where tight tolerances and fine thread pitches are required. The bright/uncoated finish is appropriate for use across a range of workpiece materials without the heat sensitivity concerns associated with coated tooling.

This thread mill is intended for use in CNC machining centers and milling machines where helical interpolation is used to generate threads. It is well-matched for precision machining environments including aerospace, medical device, electronics, and general metalworking applications where small-diameter fine threads must be generated accurately. The single profile form allows one tool to produce a range of thread pitches within its specified TPI range, reducing tooling inventory needs. This tool is typically run by machinists and CNC programmers working in job shops or production environments requiring consistent thread quality in small screw-size applications.

Key Features

• Single profile design mills threads from 56 to 80 TPI across the 2-56 to 2-80 thread size range
• Cuts both internal and external threads with one tool
• Submicron-grade solid carbide construction for rigidity and extended tool life in precision applications
• 0.06-inch cutting diameter with a 0.034-inch neck diameter for reach into small bores
• 1/8-inch length of cut keeps cutting forces low in fine-pitch threading operations
• Bright/uncoated finish suitable for a broad range of workpiece materials

Compatibility

Designed for use in CNC milling machines and machining centers capable of helical interpolation, compatible with standard 3/16-inch collet or end mill toolholding systems. Suitable for generating 2-56 and 2-80 thread forms in metallic and non-metallic workpiece materials.

Installation Notes

Installation and operation should be performed by qualified machinists or CNC programmers familiar with thread milling cycles and helical interpolation G-code. Ensure the toolholder collet and spindle are clean and properly torqued before use. Verify programmed cutting diameter offsets match the specific thread pitch being generated before running production parts. Inspect the tool under magnification prior to use to confirm cutting edges are free of chips or damage, particularly given the small diameter of this tooling.