Scientific Cutting Tools SPTM372L Thread Mill Solid Carbide

Product Description

The SCIENTIFIC CUTTING TOOLS SPTM372L is a single profile thread mill designed to cut both internal and external threads in the 1/2-12 to 1/2-32 range, spanning 12 to 32 TPI. Built from submicron-grade solid carbide, it delivers the rigidity and wear resistance required for precision threading operations on CNC machining centers. The cutting diameter measures 0.372 inches with a 3/8-inch shank diameter and a 3-inch overall length. Four flutes provide efficient chip evacuation during helical interpolation passes. The bright uncoated finish makes it well suited for a wide range of workpiece materials where coating is not required or preferred.

This thread mill is appropriate for machine shops, tool rooms, and production environments where a single tool must handle multiple thread pitches within the 1/2-inch nominal size range. It performs on both internal and external thread forms, reducing the number of dedicated taps or dies required in a setup. Typical applications include threading operations on aluminum, mild steel, stainless steel, and other machinable alloys. The solid carbide construction supports higher spindle speeds and tighter tolerances compared to high-speed steel alternatives. Licensed machinists and CNC programmers working with helical interpolation cycles will find this tool compatible with standard CAM-generated thread milling toolpaths.

Key Features

• Cuts internal and external threads from 12 to 32 TPI within the 1/2-inch thread size range
• Submicron-grade solid carbide construction for rigidity and extended tool life
• 0.372-inch cutting diameter with a 0.240-inch neck diameter for clearance in blind and through-hole applications
• 1.25-inch length of cut accommodates a range of thread depth requirements
• Four-flute geometry promotes efficient chip evacuation during helical interpolation
• Bright uncoated finish suitable for dry or lubricated cutting environments

Compatibility

Designed as an OEM-style single profile thread mill for use in CNC machining centers capable of helical interpolation with a 3/8-inch tool holder or collet.

Installation Notes

Installation and operation of this thread mill requires a CNC machining center with helical interpolation capability. Secure the 3/8-inch shank in a properly sized collet or milling chuck and verify runout before use, as excessive runout will degrade thread quality. Always confirm spindle speed and feed rate against the tool manufacturer recommendations and workpiece material requirements before engaging the cut. Ensure the machine spindle is fully stopped before changing or inspecting the tool.