Scientific Cutting Tools TM480-11N Thread Mill 5/8-11 Unc

Product Description

The SCIENTIFIC CUTTING TOOLS TM480-11N is a straight flute thread mill designed for cutting 5/8-11 UNC threads in both external and internal applications. Built from powdered metal and finished with a TiCN coating, this tool delivers consistent thread form with improved wear resistance across a range of workpiece materials. It runs 6 flutes with 11 teeth per inch, a 0.48 inch cutting diameter, and a 1.127 inch length of cut. The 1/2 inch shank diameter is compatible with standard end mill holders and shrink-fit tooling. Machinists and CNC operators use this tool in milling centers where thread milling is preferred over tapping for thread quality, breakage risk reduction, or through-coolant-restricted setups.

This thread mill is suited for job shop and production environments running UNC thread programs on vertical or horizontal machining centers. It handles both external boss threads and internal threaded bores in a single helical interpolation pass, making it a versatile option for shops consolidating tooling. The 5/8-11 thread size is common in structural, mechanical, and industrial fastener applications. At 4 inches overall length, the tool provides adequate reach for most standard fixture and workholding setups without excessive overhang.

Key Features

• Cuts 5/8-11 UNC threads in both external and internal configurations
• 6 straight flutes with 11 teeth per inch for stable thread form engagement
• Powdered metal construction for improved toughness compared to standard HSS
• TiCN coating increases surface hardness and reduces built-up edge
• 0.48 inch cutting diameter with 1.127 inch length of cut
• 1/2 inch shank diameter fits standard end mill and shrink-fit holders

Compatibility

Designed for use in CNC machining centers capable of helical interpolation for thread milling operations. Compatible with standard 1/2 inch end mill holders, collet chucks, and shrink-fit toolholders. Suitable for UNC 5/8-11 thread programs on machining centers with three-axis simultaneous interpolation capability.

Installation Notes

Thread milling requires a CNC control capable of helical interpolation; verify program compatibility before setup. Secure the tool in a properly torqued holder according to the toolholder manufacturer specifications and confirm runout with a dial indicator before cutting. This tool does not feature through-coolant; use external flood or mist coolant directed at the cutting zone. Follow shop safety protocols and ANSI B11 machine tool safety guidelines when setting up and operating milling equipment.