Harvey Tool 14099-C3 Square End Mill 0.1 in 4 Flute Altin

Product Description

The HARVEY TOOL 14099-C3 is a miniature square end mill designed for precision milling operations in demanding machining environments. Built from solid carbide, it features a 0.1000 inch cutting diameter, a 0.1500 inch length of cut, and four right-hand spiral flutes with a 30-degree helix angle. The AlTiN coating increases surface hardness and heat resistance, extending tool life during high-speed and dry cutting applications. At 1.5000 inches overall length with a 0.1250 inch shank diameter, this single-end tool is suited for use in CNC machining centers and manual mills where small-diameter, high-accuracy cuts are required. Machinists and tooling specialists are the primary users.

This end mill is well-suited for milling steel, stainless steel, cast iron, aluminum and other non-ferrous metals, and carbon fiber reinforced polymer (CFRP) materials. Its stub and standard miniature geometry makes it a practical choice for fine-detail work, slot milling, and profiling in tight-tolerance components. It is centercutting, allowing plunge entry directly into the workpiece, and its right-hand cutting direction is compatible with standard CNC spindle configurations. Typical applications include aerospace components, medical device parts, mold work, and precision instrument manufacturing.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard materials
• AlTiN coating improves heat resistance and extends tool life in dry or high-speed cuts
• 4-flute, right-hand spiral design at 30-degree helix for efficient chip evacuation
• Centercutting capability allows direct plunge entry without pre-drilling
• 0.1000 inch diameter with 0.1500 inch length of cut for fine-detail and miniature milling
• Single-end configuration with 0.1250 inch shank for standard collet or endmill holder fitment

Compatibility

Designed for use in CNC machining centers and manual mills accepting a 0.1250 inch shank diameter. Compatible workpiece materials include steel, stainless steel, cast iron, aluminum and non-ferrous metals, and CFRP materials, corresponding to ISO material groups P, M, K, N, and C.

Installation Notes

Installation and tool changes should be performed by a qualified machinist with the spindle fully stopped and the machine in a safe, locked-out state. Secure the 0.1250 inch shank in a properly sized collet or end mill holder, ensuring full engagement depth to minimize runout. At this diameter, even minor runout will significantly reduce tool life and cut quality — verify holder concentricity before use. Follow the machine tool manufacturer guidelines and applicable shop safety procedures when setting speeds and feeds for miniature carbide tooling.