Osg 8331004 Thread Mill M8x1.25 4 Flute Solid Carbide

Product Description

The OSG 8331004 is a solid carbide helical flute thread mill designed for cutting M8x1.25 metric internal threads in CNC machining operations. With a 5.70 mm cutting diameter and a 6.00 mm shank diameter, this tool mounts directly in standard collet chucks and toolholders without adapters. The 18.75 mm length of cut accommodates typical thread depth requirements for M8 fastener applications. An EgiAs coating reduces friction and heat buildup at the cutting zone, extending tool life in ferrous and nonferrous workpiece materials. Machinists and CNC programmers working in job shop, production, and aerospace environments will find this tool suited for helical interpolation thread milling cycles.

This thread mill is intended for use on CNC machining centers capable of helical interpolation. It is applied to right-hand M8x1.25 metric thread profiles in materials compatible with solid carbide tooling. The four-flute geometry supports moderate feed rates and smooth chip evacuation in through-hole and blind-hole applications. Coolant-through is not supported, so external coolant or mist cooling should be used to manage heat at the cutting zone during operation.

Key Features

• M8x1.25 metric thread profile, right-hand flute direction
• Solid carbide construction for rigidity and wear resistance
• EgiAs coating for extended tool life and reduced friction
• 4-flute helical geometry supports efficient chip evacuation
• 6.00 mm shank diameter fits standard collet and toolholder systems
• No coolant-through — optimized for external or mist coolant delivery

Compatibility

Designed for use in CNC machining centers capable of helical interpolation; suitable for cutting M8x1.25 right-hand metric threads in workpieces compatible with solid carbide thread milling tools.

Installation Notes

Installation and operation should be performed by qualified CNC machinists or tooling technicians. Secure the 6.00 mm shank in a properly sized collet or toolholder and verify runout before cutting. Program helical interpolation cycles per the machine control and toolpath software requirements. Ensure spindle speed and feed rate are set according to the workpiece material and do not exceed tool manufacturer guidelines.