Osg 424-187511 Square End Mill 4 Flute Solid Carbide Tialn

Product Description

The OSG 424-187511 is a double-end, four-flute square end mill designed for precision milling in a wide range of metalworking applications. Built from micrograin solid carbide, it delivers the hardness and wear resistance needed for demanding cutting conditions. A TiAlN coating extends tool life by reducing heat buildup at the cutting edge. The stub-length geometry keeps deflection low, and the 30-degree right-hand spiral flute configuration promotes efficient chip evacuation. With a 3/16 inch mill diameter and 2 inch overall length, this end mill suits tight-tolerance work where rigidity and accuracy are critical. Installed by machinists and tool-and-die professionals on CNC mills and manual machines alike.

This end mill is suited for use in ferrous and non-ferrous metal milling operations, including profiling, slotting, and contouring. The double-end design doubles usable tool life before replacement is required. The stub overall length of 2 inches keeps the tool rigid in the spindle, making it a practical choice for high-feed operations in production environments. Its centercutting capability allows plunge entry, expanding application flexibility. Typical users include job shops, mold makers, and general machining operations running steel, stainless, and aluminum workpiece materials.

Key Features

• Double-end design extends usable tool life between replacements
• Micrograin solid carbide construction for rigidity and wear resistance
• TiAlN coating reduces thermal wear at high cutting speeds
• 30-degree right-hand helix promotes clean chip flow
• Centercutting geometry allows direct plunge entry
• Straight-cylindrical shank fits standard collet and end mill holders

Compatibility

Designed as an OEM-style replacement or direct-use solid carbide end mill for standard 3/16 inch straight-cylindrical collets and end mill holders on CNC and manual milling machines.

Installation Notes

Installation should be performed by a qualified machinist following standard toolholding procedures. Ensure the spindle is fully stopped and the machine is powered down before changing tooling. Secure the shank fully within the collet or holder to the minimum insertion depth recommended for the holder type. Verify runout with a dial indicator before beginning a production cut.