Robbjack SR-2-024 Square End Mill 0.024 in 2 Flute Carbide

Product Description

The ROBBJACK SR-2-024 is a miniature square end mill designed for precision milling in tight tolerances. Built from solid carbide in the Tuffy material grade, this tool delivers rigidity and wear resistance in demanding cutting applications. It features a 0.024-inch cutting diameter, a 0.072-inch length of cut, and a 1/8-inch straight cylindrical shank. The 2-flute, spiral-flute geometry with a 30-degree helix angle promotes efficient chip evacuation. Centercutting capability allows for direct plunge entry. This tool is installed and operated by machinists and CNC tooling professionals working in high-precision manufacturing environments.

The SR-2-024 is suited for fine-feature milling in materials that benefit from solid carbide tooling, including hardened steels and non-ferrous alloys. Its regular-length classification and 1.5-inch overall length make it well-matched for CNC machining centers and manual mills requiring micro-diameter end mills. The uncoated finish makes it appropriate for applications where coating interaction with the workpiece material is a concern or where re-sharpening is anticipated.

Key Features

• 0.024-inch cutting diameter with mill diameter tolerance of plus 0.0005 / minus 0.0005 inches
• Solid carbide construction in Tuffy material grade for rigidity and edge retention
• 2-flute spiral flute design with 30-degree helix angle for efficient chip evacuation
• Centercutting geometry allows direct plunge milling
• Right-hand cut and right-hand flute orientation
• Uncoated finish suitable for applications requiring bare carbide contact

Compatibility

Designed as an OEM-style micro end mill in the SR-2 series, compatible with CNC machining centers and manual mills accepting a 1/8-inch straight cylindrical shank.

Installation Notes

Installation should be performed by a qualified machinist or CNC tooling technician. Secure the shank fully within the collet or tool holder to the manufacturer-specified engagement depth before operation. Verify spindle runout is within acceptable limits before engaging the workpiece, as micro-diameter tooling is especially sensitive to runout-induced breakage. Follow all machine guarding and PPE requirements per shop safety standards.