Seco 02827491 Thread Mill 10-24 Unc 3 Flute Solid Carbide

Product Description

The SECO 02827491 is a solid carbide helical flute thread mill designed for cutting internal UNC threads in a single helical pass. Built with three flutes and a 6.00 mm (0.2360 inch) shank diameter, it produces 10-24 thread forms with a cutting diameter of 0.1460 inches and a length of cut of 0.3980 inches. The overall tool length is 1.9290 inches. Thread mills of this type offer greater process flexibility than taps, allowing a single tool to cut full thread depth in one interpolated toolpath on a CNC machining center. Solid carbide construction provides the rigidity and wear resistance needed for consistent thread quality in ferrous and non-ferrous materials.

This thread mill is suited for job shops, production machining environments, and tool rooms where internal 10-24 UNC threads are required in blind or through-hole applications. Its compact geometry and 6.00 mm shank make it compatible with standard ER collet and shrink-fit toolholding systems commonly used on vertical and horizontal machining centers. The helical flute design aids chip evacuation during the milling cycle, which is particularly useful in deeper hole applications where chip packing is a concern.

Key Features

• Solid carbide construction for rigidity and extended tool life
• Three helical flutes for improved chip flow and surface finish
• Cuts 10-24 UNC internal threads at 24 teeth per inch
• Cutting diameter of 0.1460 inches with 0.3980 inches length of cut
• 6.00 mm shank diameter fits standard ER and shrink-fit toolholders
• No coolant-through requirement simplifies setup

Compatibility

Designed as an OEM-style replacement or direct-use thread mill for CNC machining center applications requiring internal 10-24 UNC thread milling with a 6.00 mm shank toolholder.

Installation Notes

Thread mills require a CNC machining center capable of helical interpolation (G02/G03 with Z-axis feed) — confirm machine capability before use. Secure the shank fully in the collet or shrink-fit holder to the manufacturer-specified engagement depth before running the spindle. Inspect the cutting edges for chipping before each use, as carbide tools are brittle and sensitive to interrupted cuts or side loads. Follow your facility safety protocols for machine guarding and chip containment when machining.