Osg 86300009 Square End Mill 1/8 in 3 Flute Solid Carbide

Product Description

The OSG 86300009 is a solid carbide square end mill designed for precision milling operations in ferrous and non-ferrous materials. With a 0.125 inch (1/8 inch) cutting diameter and a 40-degree helix angle, it delivers aggressive chip evacuation and smooth cutting action. The diamond-like carbon (DLC) finish reduces friction and improves wear resistance in high-speed applications. Three flutes provide a balance between chip clearance and surface finish quality. This end mill is centercutting, allowing plunge entry directly into the workpart. It is a single-end tool intended for CNC machining centers and manual mills operated by machinists and tool-and-die technicians.

This end mill is suited for slot milling, profiling, and contouring operations in light to medium-duty applications. The 3/8 inch length of cut accommodates shallow to moderate depth passes, making it appropriate for precision work in mold making, prototype machining, and general-purpose shop use. Right-hand cut with right-hand flute orientation is standard for conventional CNC spindle configurations. The 1/8 inch shank diameter fits standard collets and tool holders commonly used in small-diameter machining setups.

Key Features

• Solid carbide construction for rigidity and wear resistance in demanding cuts
• DLC finish reduces friction and extends tool life in abrasive materials
• 40-degree helix angle promotes efficient chip evacuation and reduces cutting forces
• Centercutting geometry allows direct plunge milling without a pre-drilled entry hole
• Three-flute design balances material removal rate with surface finish quality
• Right-hand cut and right-hand flute orientation compatible with standard CNC spindle rotation

Compatibility

Designed as an OEM-style replacement or standard tooling selection for CNC machining centers and manual mills using 1/8 inch collets or tool holders accepting a 0.125 inch shank diameter.

Installation Notes

Installation should be performed by a qualified machinist following standard tool-holding procedures. Ensure the spindle is fully stopped and the machine is powered down before inserting or removing the end mill from the collet or chuck. Use a calibrated torque wrench on collet nuts and verify tool runout with a dial indicator before beginning production cuts. Do not exceed the recommended depth of cut for the tool diameter to avoid tool deflection or breakage.