Scientific Cutting Tools TM3-.5MM-A Thread Mill M3 X 0.50

Product Description

The SCIENTIFIC CUTTING TOOLS TM3-.5MM-A is a straight flute thread mill designed for cutting internal metric coarse threads. Built from submicron-grade solid carbide and finished with an AlTiN+ coating, it delivers consistent tool life in demanding materials. The cutter produces M3 x 0.50 threads with a 0.09 inch cutting diameter and a 0.264 inch length of cut. The 0.25 inch shank mounts directly in standard milling chucks or collets on CNC machining centers. This tool is installed and operated by machinists and CNC programmers working in precision manufacturing, job shops, and production environments.

This thread mill is suited for internal M3 x 0.50 metric coarse thread applications on CNC machining centers. At 2.5 inches overall length with a 3-flute straight flute geometry, it handles thread milling in a range of workpiece materials where a tap would carry higher breakage risk in small-diameter bores. The AlTiN+ coating supports use in harder steels, stainless steels, and other demanding materials. It is a single-pass or helical-interpolation tool depending on the programmed cycle.

Key Features

• Submicron-grade solid carbide construction for rigidity and wear resistance in small-diameter thread milling
• AlTiN+ coating for extended tool life in ferrous and hard-to-machine materials
• 3 straight flutes for stable cutting action on internal M3 x 0.50 metric coarse threads
• 0.09 inch cutting diameter suited to tight-tolerance small-bore thread milling
• No coolant-through design - compatible with external coolant or minimum quantity lubrication setups
• 0.25 inch shank fits standard ER collets and milling chucks without adapters

Compatibility

Designed for CNC machining centers capable of helical interpolation, producing internal M3 x 0.50 metric coarse threads. Requires a 0.25 inch collet or milling chuck. No specific machine model compatibility was stated in the product data.

Installation Notes

Thread mills must be run on a CNC machining center with helical interpolation capability - confirm the control supports the required G-code cycle before setup. Secure the shank in a properly sized collet or chuck and verify runout before cutting. Power down and lock out the machine before changing or inspecting the tool. Do not use this tool on manual mills or in applications requiring thread forms other than what the tool is ground to produce.