Accupro C911-75010 Thread Mill 3/4-10 Unc 4 Flute Carbide

Product Description

The ACCUPRO C911-75010 is a solid carbide helical flute thread mill designed for cutting internal 3/4-10 UNC threads in machining center applications. It features a 0.490 inch cutting diameter, a 1.0 inch length of cut, and a TiAlN coating that extends tool life in ferrous and high-temp alloy materials. The micrograin carbide substrate provides rigidity and edge retention at higher feed rates. With 4 flutes and a 0.500 inch shank, this tool is suited for CNC milling operations requiring precise, single-pass internal thread generation.

This thread mill is used in CNC machining environments for producing internal 3/4-10 UNC threads in workpieces where tapping is impractical or where thread fit tolerance is critical. Typical applications include threading blind holes, hard materials, and thin-walled components in job shop, aerospace, and general manufacturing settings. A licensed machinist or CNC operator installs and runs this tool on a milling machine or machining center with helical interpolation capability. Coolant-through is not supported; flood or mist coolant applied externally is the standard approach.

Key Features

• Solid micrograin carbide construction for rigidity and extended edge life
• TiAlN coating improves wear resistance and performance in ferrous and exotic alloys
• 4-flute helical geometry supports efficient chip evacuation during thread milling
• Cuts internal 3/4-10 UNC threads with a 0.490 inch cutting diameter and 1.0 inch length of cut
• 0.500 inch shank diameter fits standard ER or shrink-fit toolholders
• No coolant-through — compatible with external flood or mist coolant strategies

Compatibility

Designed for use on CNC machining centers capable of helical interpolation for cutting internal 3/4-10 UNC threads. Fits standard 0.500 inch bore toolholders including ER collet chucks and shrink-fit holders.

Installation Notes

Installation and operation should be performed by a qualified CNC machinist or tooling specialist. Secure the shank in a balanced, properly torqued toolholder per the toolholder manufacturer specifications before use. Program the machine for helical interpolation at the correct pitch to match the 10 TPI thread specification. Inspect the cutting edges before each use and replace the tool if chipping or wear is observed to maintain thread quality and prevent workpiece damage.