Scientific Cutting Tools TM370-16EXJ-A Thread Mill 5 Flute

Product Description

The SCIENTIFIC CUTTING TOOLS TM370-16EXJ-A is a straight flute external thread mill designed for cutting UNJ external threads in demanding machining applications. Built from submicron-grade solid carbide and coated with AlTiN+, this tool delivers high heat resistance and extended tool life in hard and abrasive materials. It features 5 flutes, a 3/8 inch shank diameter, and a cutting diameter of 0.37 inches with a length of cut of 0.774 inches. At 16 teeth per inch, it is suited for fine-pitch UNJ threading operations. This tool is typically installed and operated by CNC machinists and tooling specialists in precision machining environments.

This thread mill is intended for external UNJ thread milling on CNC machining centers. The straight flute geometry makes it well suited for harder materials and short-chipping alloys where chip evacuation is straightforward. With an overall length of 3.5 inches and a 3/8 inch shank, it fits standard toolholders used in vertical and horizontal machining centers. It is commonly used in aerospace, defense, and precision manufacturing where UNJ thread form compliance is required.

Key Features

• Submicron-grade solid carbide construction for rigidity and wear resistance
• AlTiN+ coating provides high-temperature resistance and extended tool life
• 5-flute straight flute design suited for hard and abrasive materials
• 16 TPI pitch for fine UNJ external thread profiles
• 0.37 inch cutting diameter with 0.774 inch length of cut
• No coolant-through design - suitable for standard external coolant delivery

Compatibility

Designed for UNJ external thread milling applications on CNC machining centers equipped with standard 3/8 inch toolholders.

Installation Notes

This tool should be installed by a qualified CNC machinist or tooling technician. Ensure the toolholder is clean and the shank is secured to the manufacturer-recommended pull-out force before running. Confirm spindle speed and feed rate are programmed to match the tool diameter and workpiece material before engaging the cut. Never exceed the tool's rated cutting diameter or depth of cut for the material being machined.