Osg 414-187511 Square End Mill 3/16 in 4 Flute Solid Carbide

Product Description

The OSG 414-187511 is a solid carbide square end mill designed for precision milling in metalworking and machining applications. Built on OSG Series 414, it features a 3/16 inch cutting diameter, a 3/8 inch length of cut, and a 2 inch overall length in a stub-length configuration. The TiAlN coating improves heat resistance and extends tool life in ferrous and hardened materials. With 4 spiral flutes and a 30-degree helix angle, this end mill provides efficient chip evacuation and consistent surface finish. It is centercutting, allowing plunge entry. Machined from micrograin carbide stock for dimensional stability and edge retention in demanding cuts.

This end mill is suited for light to medium slotting, profiling, and pocket milling on CNC machining centers and manual knee mills. The stub-length design reduces deflection, making it a practical choice for short-reach finishing passes and high-precision detail work. Right-hand cut with right-hand flute geometry is standard for conventional spindle setups. Typical applications include milling steel, stainless steel, cast iron, and similar ferrous alloys in job shop and production environments.

Key Features

• Solid micrograin carbide construction for edge strength and wear resistance
• TiAlN finish for elevated heat tolerance in high-speed ferrous milling
• 4 spiral flutes with 30-degree helix angle for smooth chip flow
• Centercutting geometry allows direct plunge entry
• Stub length reduces tool deflection in close-tolerance work
• Mill diameter tolerance of +0.000 / -0.001 inches for consistent fit in collets and tool holders

Compatibility

Designed as an OEM-style replacement or direct-fit cutting tool for 3/16 inch collets and tool holders on standard CNC machining centers and manual milling machines accepting straight-shank end mills.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the spindle is fully stopped and the machine is in an e-stop or locked-out state before changing tooling. Seat the shank fully and evenly in the collet or end mill holder and torque the drawbar or nut to the tool holder manufacturer specification. Inspect the cutting edges for chips or damage before each use.