Robbjack SR-2-038 Square End Mill 0.038 in 2 Flute Carbide

Product Description

The ROBBJACK SR-2-038 is a solid carbide square end mill designed for precision milling in demanding machining applications. Part of the SR-2 series, this centercutting tool features a 0.038-inch cutting diameter and a 0.114-inch length of cut, making it well suited for fine-detail work in tight geometries. The 2-flute spiral design with a 30-degree helix angle promotes efficient chip evacuation and smooth cutting performance. With a 1/8-inch straight-cylindrical shank and a 1.5-inch overall length, this end mill is sized for use in CNC machining centers and manual mills where small-diameter tooling is required. It is installed and used by machinists and toolroom professionals.

This end mill is intended for small-feature milling operations including slots, pockets, and contour work in materials suited to uncoated solid carbide tooling. The ROBBJACK Tuffy material grade provides the hardness and wear resistance needed for production runs in ferrous and non-ferrous materials. The right-hand cut and right-hand flute configuration is standard for conventional CNC milling setups. Its regular length type and compact geometry make it a reliable choice for high-precision work where dimensional accuracy is critical.

Key Features

• Solid carbide Tuffy material grade for hardness and wear resistance
• Centercutting design allows plunge entry into workpiece
• 30-degree helix angle with spiral flute for efficient chip evacuation
• Right-hand cut and right-hand flute for standard CNC milling setups
• Straight-cylindrical shank for secure collet or chuck mounting
• Tight mill diameter tolerance of plus 0.0005 / minus 0.0005 inches

Compatibility

Designed as an OEM-style replacement and standard tooling selection for CNC machining centers and manual mills using 1/8-inch collets or tool holders accepting straight-cylindrical shanks in the SR-2 series.

Installation Notes

Installation should be performed by qualified machinists following shop safety procedures. Ensure the spindle is fully powered down and the machine is in a safe state before changing tooling. Seat the shank fully into the collet or chuck and torque the holder to the machine manufacturer's specification. Verify runout with a dial indicator before beginning cuts, particularly when working at small diameters where deflection and runout have a significant impact on tool life and part accuracy.