Promax 157-01214 Ball End Mill 4 Flute Solid Carbide

Product Description

The PROMAX 157-01214 is a solid carbide ball end mill designed for precision milling in demanding metalworking applications. It features a 0.1875-inch (3/16-inch) diameter with a 0.625-inch length of cut and a 2-inch overall length. The four-flute, right-hand helical design with a 40-degree high helix angle promotes efficient chip evacuation and smooth cutting action. An AlTiN (aluminum titanium nitride) PVD coating provides thermal resistance and hardness, extending tool life during high-speed or dry machining operations. The submicron carbide grade construction adds toughness and wear resistance across a wide range of workpiece materials.

This end mill is suited for milling steel, stainless steel, cast iron, superalloys, and titanium. It handles both roughing and finishing operations in a single tool, making it practical for job shops and production environments where tool changes reduce throughput. The single-end, straight-cylindrical shank allows straightforward setup in standard collets or end mill holders. The standard-length configuration fits most vertical machining centers and CNC mill setups used in precision metalworking.

Key Features

• 0.1875-inch mill diameter with tight tolerance of +0.0000 / -0.0020 inches for dimensional accuracy
• Four right-hand helical flutes with 40-degree high helix angle for efficient chip flow
• AlTiN PVD coating for high-temperature resistance and extended tool life
• Submicron carbide grade for improved toughness in ferrous and high-temp alloy cutting
• Suitable for both roughing and finishing passes
• Single-end, straight-cylindrical shank with 0.1875-inch shank diameter

Compatibility

Designed for use in CNC machining centers and manual mills with standard collet or end mill holder tooling that accepts a 3/16-inch straight shank. Primary workpiece materials include steel, stainless steel, cast iron, superalloys, and titanium (ISO material codes P, M, K, S).

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Ensure the spindle is fully stopped and locked out before inserting or removing the tool from the holder. Verify collet size matches the 0.1875-inch shank diameter and that the tool is seated to the proper gauge length before tightening. Follow machine tool manufacturer guidelines for runout tolerances when setting up carbide end mills to avoid premature tool failure.