Robbjack TS-301-08 Square End Mill 1/4 in 3 Flute Carbide

Product Description

The ROBBJACK TS-301-08 is a solid carbide square end mill from the TS-301 Tuffy series, designed for precision milling in demanding shop environments. It features a 0.250-inch mill diameter, a 0.500-inch length of cut, and a 2.000-inch overall length in a stub-length configuration. The three-flute, right-hand spiral design with a 30-degree helix angle promotes efficient chip evacuation and smooth cutting action. This end mill is centercutting, allowing plunge entry, and is left in an uncoated finish suitable for a range of standard machining applications. Machinists and CNC programmers working in job shops, toolrooms, and production environments will find this tool useful for slotting, profiling, and pocketing operations.

The TS-301-08 is suited for use in CNC machining centers and manual mills where a compact, stub-length tool is preferred for rigidity. Its straight-cylindrical shank fits standard collet chucks and end mill holders accepting a 1/4-inch shank. The uncoated solid carbide construction makes it appropriate for dry or wet cutting conditions depending on the workpiece material and shop practice. This tool targets machinists working with aluminum, brass, plastics, and softer ferrous materials in precision cutting scenarios.

Key Features

• Solid carbide construction from the ROBBJACK Tuffy material grade for wear resistance and edge retention
• Three flutes with right-hand spiral and 30-degree helix angle for efficient chip flow
• Centercutting geometry allows direct plunge cuts without a pre-drilled entry hole
• Stub-length design maximizes tool rigidity and minimizes deflection in tight setups
• Right-hand cut and right-hand flute direction compatible with standard spindle rotation
• Uncoated finish maintains broad material compatibility without coating-specific limitations

Compatibility

Designed as an OEM-style replacement and standard-fit solid carbide end mill for use in any CNC or manual milling machine accepting a 1/4-inch straight-cylindrical shank.

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 changing tooling. Seat the shank fully into a clean, properly sized collet or end mill holder and torque the retention mechanism per the tool holder manufacturer specifications. Inspect the cutting edges for chips or damage before each use.