Scientific Cutting Tools TMLR126-32A Thread Mill 8-32

Product Description

The SCIENTIFIC CUTTING TOOLS TMLR126-32A is a helical flute thread mill designed for cutting internal 8-32 UNC threads in a single helical pass. Built from submicron-grade solid carbide and finished with an AlTiN+ coating, it delivers hardness and heat resistance suited for demanding machining environments. The tool features 3 right-hand flutes, a cutting diameter of 0.1260 inches, and a length of cut of 0.3000 inches. With a 2.5000-inch overall length, this is a long-reach thread mill, giving access to deeper bores. It is installed and operated by machinists and CNC programmers in production and job-shop environments.

This thread mill is intended for internal threading operations on 8-32 UNC fastener threads in metalworking applications. The long-reach geometry makes it well suited for workpieces where standard-length tooling cannot reach the thread zone. It is used in CNC machining centers running helical interpolation cycles. Typical materials include steel, stainless steel, aluminum, and similar metals where AlTiN+ coating provides thermal and wear protection. No coolant-through capability is present, so flood or mist coolant at the spindle is the standard approach.

Key Features

• 8-32 UNC internal thread form at 32 teeth per inch
• Submicron-grade solid carbide substrate for rigidity and edge retention
• AlTiN+ coating for elevated heat resistance and extended tool life
• 3 right-hand helical flutes for efficient chip evacuation
• Long-reach design with 2.5000-inch overall length for deep-bore access
• 0.1260-inch cutting diameter with 0.3000-inch length of cut

Compatibility

Designed for use in CNC machining centers capable of helical interpolation, with a 1/4-inch tool holder or collet. Suited for cutting 8-32 UNC internal threads in solid carbide toolpath applications across a range of workpiece materials.

Installation Notes

Installation and operation should be performed by a qualified machinist or CNC programmer. Secure the 1/4-inch shank in a properly sized collet or tool holder and verify runout before operation. Program the machine for a helical interpolation cycle matched to the 8-32 UNC thread specification. Since this tool has no coolant-through provision, ensure adequate external coolant flow to manage heat at the cutting zone.