Osg 414-1250 Square End Mill 1/8 in 4 Flute Solid Carbide

Product Description

The OSG 414-1250 is a solid carbide square end mill designed for precision material removal in machining operations. Built from micrograin carbide, it delivers a sharp, durable cutting edge suited for ferrous and non-ferrous materials. The 4-flute configuration provides a balance of chip evacuation and surface finish quality. With a 0.125 inch cutting diameter, a 0.25 inch length of cut, and a 30-degree helix angle, this stub-length end mill is well suited for short-reach slotting, profiling, and peripheral milling in CNC machining centers and manual mills. It is centercutting, allowing plunge entry directly into the workpiece.

This end mill is used in tool and die, mold making, precision part manufacturing, and general-purpose shop machining. Its stub length and matched shank-to-cutter diameter make it a practical choice when rigidity is a priority in tight-clearance or shallow-depth applications. The right-hand cut and right-hand spiral flute orientation are standard for conventional CNC spindle setups. Machinists and CNC operators in production and job shop environments are the primary installers and users of this tool.

Key Features

• Solid micrograin carbide construction for extended tool life and edge retention
• 4-flute spiral design balances chip clearance and finish quality
• 30-degree helix angle for smooth cutting action in a range of materials
• Centercutting geometry allows direct plunge milling
• Stub length for maximum rigidity in shallow-depth operations
• Uncoated finish suitable for use with cutting fluids across a broad material range

Compatibility

Designed as an OEM-style replacement or direct-use solid carbide square end mill for standard 1/8 inch collet or end mill holder setups on CNC machining centers, knee mills, and similar milling equipment.

Installation Notes

Installation requires a properly sized collet, end mill holder, or shrink-fit toolholder matching the 0.125 inch shank diameter. Ensure the spindle is fully stopped and the machine is powered down or in an e-stop state before tool changes. Verify runout with a dial indicator after seating, as excessive runout accelerates wear on small-diameter carbide tools. Follow the machine manufacturer and tooling manufacturer feed and speed recommendations for the specific workpiece material.