Accupro 12276807 Square End Mill 0.03in 4 Flute Carbide

Product Description

The ACCUPRO 12276807 is a solid carbide square end mill engineered for precision milling in ferrous and non-ferrous materials. With a 0.03 inch cutting diameter and a 4-flute, right-hand spiral geometry at a 30-degree helix angle, this tool delivers clean, accurate cuts in tight-tolerance applications. The bright, uncoated finish makes it well-suited for use in materials where coated tools may cause adhesion issues. It is a single-end, centercutting design, meaning it can plunge as well as profile. Machinists and tool-and-die professionals specify this tool for micro-milling, engraving, and detail work on CNC machining centers and manual mills.

This end mill is a regular-length tool with a 3/32 inch length of cut and a 1-1/2 inch overall length. The 1/8 inch shank diameter fits standard collet and end mill holders used on benchtop and production CNC platforms. Its micrograin carbide grade supports high RPM operation and holds an edge longer than conventional carbide in fine-detail cutting scenarios. Typical applications include slotting, profiling, and plunge milling in aluminum, brass, mild steel, and plastics where fine feature resolution is required.

Key Features

• 0.03 inch cutting diameter with mill diameter tolerance of +0.0000 / -0.0010 inches
• 4-flute, right-hand cut and right-hand flute spiral geometry
• 30-degree helix angle for balanced chip evacuation and surface finish
• Centercutting design allows plunge and ramp entry
• Micrograin solid carbide construction for extended edge life at high RPM
• Bright, uncoated finish — suitable for non-ferrous metals and plastics without coating adhesion concerns

Compatibility

Designed for use in standard 1/8 inch collets and end mill holders on CNC machining centers, manual knee mills, and high-speed spindles requiring a regular-length, square-profile micro end mill.

Installation Notes

Installation should be performed by a qualified machinist following the machine manufacturer's runout and torque specifications for the collet system in use. Ensure the spindle is fully powered down and at rest before changing tooling. Verify collet size matches the 1/8 inch shank diameter before seating the tool. Inspect the cutting edges under magnification prior to use, as micro-diameter carbide tools are susceptible to chipping during handling.