Accupro 930-00832 Thread Mill 8-32 Unc 3 Flute Solid Carbide

Product Description

The ACCUPRO 930-00832 is a helical flute thread mill designed for cutting internal 8-32 UNC threads in a single helical pass. Built from micrograin solid carbide and coated with TiAlN, it delivers the hardness and heat resistance needed for production threading in ferrous and non-ferrous materials. The tool features three flutes with a cutting diameter of 0.115 inches, a length of cut of 0.3125 inches, and a 1/4-inch shank diameter. At 32 TPI, it is matched precisely to the 8-32 UNC thread standard. This tool is installed by machinists and toolroom professionals working on CNC machining centers.

The 930-00832 is suited for internal thread milling operations in a range of materials where tap breakage is a concern or where a single tool must produce multiple thread sizes by adjusting the toolpath offset. It is appropriate for use on CNC mills and machining centers capable of helical interpolation. Typical applications include small-diameter threaded holes in aluminum, steel, stainless steel, and similar machinable alloys in both prototype and production environments.

Key Features

• Micrograin solid carbide construction for rigidity and wear resistance in demanding cutting conditions
• TiAlN coating provides elevated heat resistance and extended tool life in ferrous materials
• Three-flute helical geometry supports smooth chip evacuation during internal thread milling
• 0.115 inch cutting diameter and 0.3125 inch length of cut sized for 8-32 UNC internal threads
• 1/4 inch shank diameter for compatibility with standard collet and end mill holders
• No coolant-through design — external coolant or mist lubrication applies

Compatibility

Designed for internal 8-32 UNC thread milling on CNC machining centers capable of helical interpolation. The 1/4 inch shank is compatible with standard ER collets and end mill holders of the same bore diameter.

Installation Notes

Thread mills must be run on a CNC machining center programmed for helical interpolation — they are not suitable for manual or drill-press use. Secure the shank in a properly sized, balanced collet or end mill holder and confirm runout before cutting. Use appropriate cutting fluid or mist coolant directed at the cutting zone, as this tool does not have coolant-through capability. Program feed rate, spindle speed, and helical pitch to match the workpiece material and the 8-32 UNC thread specification.