Seco 17004445 Thread Mill 1/2-13 3 Flute Solid Carbide

Product Description

The SECO 17004445 is a solid carbide helical flute thread mill designed for cutting 1/2-13 UN threads in both internal and external applications. With a 3-flute, right-hand cutting geometry and an AlCrN coating, this tool handles demanding threading operations where tool life and dimensional accuracy are critical. The shank diameter is 0.375 inches with a cutting diameter of 0.350 inches and a length of cut of 0.875 inches. It is installed by machinists and CNC operators working in precision manufacturing environments where single-tool internal and external thread milling is required.

This thread mill is suited for shops running CNC machining centers that require a single tool capable of producing both internal and external 1/2-13 UN threads. The helical flute design supports efficient chip evacuation during the threading cycle. With a minimum nominal diameter of 0.500 inches, it is appropriate for through-hole and blind-hole threading operations. Coolant-through is not supported on this tool, so flood or mist coolant delivery at the spindle or fixture is the standard approach.

Key Features

• Cuts 1/2-13 UN threads, internal and external, with a single tool
• 3-flute right-hand helical geometry for balanced cutting forces and chip flow
• AlCrN coating improves wear resistance and thermal stability in dry and semi-dry cutting
• Solid carbide construction provides rigidity for tight-tolerance thread profiles
• Cutting diameter tolerance of +0.0000 to -0.0020 inches supports consistent thread fit
• Shank diameter of 0.375 inches fits standard ER and side-lock toolholders

Compatibility

Designed for use in CNC machining centers capable of helical interpolation for 1/2-13 UN thread milling applications on both internal and external features with a minimum nominal diameter of 0.500 inches.

Installation Notes

Installation and operation of this tool requires a CNC machining center with helical interpolation capability. Secure the shank in a properly sized collet or toolholder and verify runout before cutting. Program thread depth and helix pitch per the 1/2-13 UN thread standard using the machine control's canned cycle or a CAM-generated helical path. Inspect the first threaded part with a calibrated thread gauge before running production.