Scientific Cutting Tools TM395-13N Thread Mill 1/2-13 Unc

Product Description

The SCIENTIFIC CUTTING TOOLS TM395-13N is a straight flute thread mill designed for cutting 1/2-13 UNC threads in both external and internal applications. Built from powdered metal and finished with a TiCN coating, it delivers reliable wear resistance in demanding production environments. The tool features 4 flutes, a 0.395-inch cutting diameter, and a 0.877-inch length of cut, making it well suited for thread milling on CNC machining centers where a single tool must handle both thread orientations. The 1/2-inch shank diameter and 4-inch overall length provide rigidity across a range of workholding setups. Machinists and CNC programmers in job shops, aerospace, and general manufacturing will find this tool a practical single-pass threading solution.

The TM395-13N is used in CNC milling operations that require 1/2-13 UNC thread production on ferrous and non-ferrous workpieces. It is suited for both through-hole and blind-hole applications where tap breakage risk is a concern or where a single tool must produce both external and internal thread forms. The staggered-tooth feature is not present on this model, keeping the toolpath straightforward and programming simple. This tool is appropriate for job shop, production machining, and prototype environments running 3- or 4-axis machining centers.

Key Features

• Cuts 1/2-13 UNC threads in both external and internal configurations with a single tool
• TiCN coating improves surface hardness and reduces built-up edge in ferrous materials
• Powdered metal substrate provides a balance of toughness and wear resistance
• 4-flute straight geometry delivers clean thread form at 13 teeth per inch
• 0.877-inch length of cut accommodates standard thread engagement depths
• 1/2-inch shank diameter fits standard ER and side-lock toolholders common on CNC machining centers

Compatibility

Designed for use in CNC machining centers equipped with a 1/2-inch tool holding system; produces 1/2-13 UNC threads per input specifications in external and internal applications.

Installation Notes

Thread mills are installed by CNC machinists and tooling technicians on live-spindle machining centers. Verify that the toolholder is clean and the shank is fully seated before running the tool. Thread milling requires helical interpolation programming; confirm G-code and cutter compensation settings match the thread specification before cutting a production part. Follow the machine tool builder guidelines and applicable shop safety procedures when setting cutting parameters.