Scientific Cutting Tools TM110-36A Thread Mill Unf 8-36 Tpi

Product Description

The SCIENTIFIC CUTTING TOOLS TM110-36A is a straight flute, internal thread mill designed for cutting UNF threads ranging from 8 to 36 TPI in a single helical pass. Built from submicron-grade solid carbide and finished with an AlTiN+ coating, it delivers hardness and heat resistance well suited to ferrous and hardened workpiece materials. The tool runs a 0.11 inch cutting diameter with a 0.345 inch length of cut and a 2.5 inch overall length, making it practical for tight-bore threading applications. It is installed by CNC machinists and toolroom technicians working on precision threaded bores in production and job-shop environments.

This thread mill is applied wherever internal UNF threads from number 8 through 36 TPI are required in a milling operation rather than a tapping operation. Thread milling offers the advantage of a single tool producing multiple thread sizes within its pitch range and reduces the risk of tap breakage in difficult materials. It is suited to vertical machining centers and CNC mills with helical interpolation capability. Typical workpieces include aluminum, steel, stainless, and other materials where solid carbide and AlTiN+ coating provide adequate tool life.

Key Features

• Straight flute geometry for internal thread milling across a range of UNF thread sizes from 8 to 36 TPI
• Submicron-grade solid carbide substrate for rigidity and wear resistance in hard and abrasive materials
• AlTiN+ coating provides elevated heat resistance and extended tool life at higher cutting speeds
• 3 flutes deliver balanced cutting forces and efficient chip evacuation in blind and through bores
• 0.11 inch cutting diameter and 0.345 inch length of cut allow use in small-diameter bore threading applications
• No coolant-through design simplifies setup on standard flood-coolant or dry-cut machining centers

Compatibility

Designed for use in CNC machining centers capable of helical interpolation; threads UNF internal profiles from number 8 minimum nominal diameter through 36 TPI on a 1/4 inch straight shank.

Installation Notes

Install in a precision collet or end mill holder rated for the 1/4 inch shank diameter; confirm runout is within tolerance before cutting. Program the toolpath as a helical interpolation move matched to the target thread pitch. Secure the workpiece fully and verify spindle speed and feed rate against the tool manufacturer recommendations for the workpiece material. Do not use this tool for external thread milling or for thread standards outside the UNF range specified.