Harvey Tool 814908-C3 Square End Mill 1/8 in 4 Flute

Product Description

The HARVEY TOOL 814908-C3 is a solid carbide square end mill designed for precision milling in metalworking and machining applications. The cutter measures 1/8 inch in diameter with a 1/2 inch length of cut and a 2-1/2 inch overall length. A 37-degree variable helix geometry reduces harmonics and chatter during aggressive cuts, improving surface finish and tool life. The AlTiN coating provides thermal resistance and hardness at the cutting edge, making this tool well suited for hardened steels, stainless alloys, and high-temperature materials. Four flutes allow for efficient chip evacuation at moderate to high feed rates in ferrous and non-ferrous materials.

This end mill is intended for use in CNC vertical machining centers, milling machines, and similar spindle-driven equipment. The 1/8 inch shank diameter fits standard collets and end mill holders in that bore size. The single-end, right-hand cut configuration suits finish profiling, slotting, and light-to-medium material removal passes. Because this tool is not centercutting, it is not suited for direct plunge operations and should be entered via ramping or helical interpolation. It is commonly installed by machinists and tool-and-die professionals working in precision shop environments.

Key Features

• Variable helix design reduces chatter and improves surface finish during high-speed cuts
• AlTiN coating extends tool life in hardened steels and high-temperature alloys
• Solid carbide construction provides rigidity and wear resistance compared to HSS tooling
• Four-flute geometry balances chip evacuation with cutting efficiency
• Right-hand cut and right-hand flute direction for standard spindle rotation
• Not centercutting — requires ramp or helical entry; not suitable for direct plunge milling

Compatibility

Designed for use with 1/8 inch bore collets, end mill holders, and shrink-fit toolholders on CNC and manual milling machines accepting that shank diameter.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the machine spindle is fully stopped and the tool changer or spindle is locked out before changing tooling. Seat the shank to the minimum recommended insertion depth for the holder type in use and verify runout before full-speed operation. Do not exceed the cutter diameter or flute length when programming depth of cut.