M.a. Ford. 11103940 Square End Mill 0.0394 in 4 Flute Carbide

Product Description

The M.A. FORD. 11103940 is a solid carbide square end mill engineered for precision milling in demanding industrial and toolroom applications. With a 0.0394 inch (1.00 mm) mill diameter and a 0.1181 inch (3.00 mm) length of cut, this micro-diameter tool delivers tight tolerances and consistent performance at small scales. The four-flute spiral geometry supports efficient chip evacuation while maintaining a stable cutting edge. A 30-degree helix angle balances cutting forces across a range of workpiece materials. This tool is installed and operated by machinists and CNC toolroom technicians working on vertical machining centers, CNC mills, and manual milling equipment.

The 11103940 is suited for milling operations on materials spanning hardened metals, cast iron, stainless steels, non-ferrous alloys, plastics, and high-temperature alloys, consistent with its primary workpiece material codes H, K, M, N, P, and S. With a 1.5 inch overall length and a straight-cylindrical shank, it fits standard collet and end mill holder setups. The uncoated carbide substrate is appropriate for applications where coating interactions with workpiece chemistry are a concern or where regrinding is planned.

Key Features

• 0.0394 inch (1.00 mm) mill diameter with tight diameter tolerance of +0.000 / -0.040 mm
• Four-flute spiral configuration for balanced chip load and surface finish
• 30-degree helix angle for stable cutting across varied material hardness levels
• Centercutting design allows plunge entry without a pre-drilled pilot hole
• Right-hand cut, right-hand flute orientation — standard for conventional and climb milling
• Solid carbide construction for rigidity and heat resistance at micro-diameter scale
• Series 111, regular length type — suitable for general-purpose milling operations

Compatibility

Designed as an OEM-style cutting tool for use in standard collet chucks and end mill holders accepting a 3.00 mm straight-cylindrical shank, compatible with vertical machining centers and CNC milling equipment configured for micro-diameter tooling.

Installation Notes

Installation should be performed by a qualified machinist or CNC technician following the machine tool manufacturer guidelines. Ensure the spindle is fully stopped and the machine is in a safe state before inserting or removing the tool from the holder. Use a calibrated torque wrench on collet nuts to avoid over-tightening, which can deform the shank on micro-diameter tools. Confirm runout at the spindle before beginning a cutting pass, as even minor runout magnifies tool deflection and breakage risk at this diameter.