M.a. Ford. 12239370 Square End Mill 0.3937 in 4 Flute Carbide

Product Description

The M.A. FORD. 12239370 is a solid carbide square end mill designed for precision milling operations in a wide range of materials. It features a 0.3937 inch (10 mm) cutting diameter with a 1.575 inch (40 mm) length of cut, a matching 0.3937 inch straight-cylindrical shank, and four helical flutes ground at a 30-degree helix angle. Manufactured from micrograin carbide in a bright, uncoated finish, it delivers consistent performance in demanding cutting applications. This is a centercutting tool with right-hand cut and right-hand flute direction, classified as a long-series tool in M.A. FORD. Series 122.

This end mill is suited for milling operations across multiple workpiece material categories, including ferrous alloys, cast iron, stainless steel, non-ferrous metals, steel, and high-temperature alloys as indicated by primary workpiece material codes H, K, M, N, P, and S. It is appropriate for use in CNC machining centers and manual mills where a long-reach, four-flute square end geometry is required. The tool is packaged and sold as a single unit and is well-suited for job shop, production, and maintenance machining environments.

Key Features

• Solid micrograin carbide construction for rigidity and wear resistance in hard and abrasive materials
• 0.3937 inch (10 mm) cutting diameter with 1.575 inch (40 mm) length of cut for extended reach applications
• Four helical flutes at 30-degree helix angle for efficient chip evacuation and smooth cutting action
• Centercutting geometry allows plunge milling capability
• Right-hand cut, right-hand flute direction with straight-cylindrical shank for standard collet and end mill holder compatibility
• Bright, uncoated finish suitable for use with cutting fluids across a broad range of work materials

Compatibility

Compatible with workpiece material categories H, K, M, N, P, and S per the manufacturer specification. Designed for use in standard ER collets, end mill holders, or milling chucks accepting a 0.3937 inch (10 mm) straight-cylindrical shank. Part of M.A. FORD. Series 122 long-series square end mills.

Installation Notes

Installation and tool changes should be performed by a qualified machinist with the machine in a full stop and lockout state per applicable shop safety procedures. Ensure the shank is fully seated and properly torqued in the tool holder according to the holder manufacturer specifications. Inspect the cutting edges for chips or damage before each use. Select appropriate speeds, feeds, and cutting fluid based on workpiece material and machine capability.