Accupro 12178903 Square End Mill 3/64 in Solid Carbide

Product Description

The ACCUPRO 12178903 is a solid carbide square end mill designed for precision milling in metalworking and machining applications. Built from micrograin solid carbide, it delivers the hardness and wear resistance needed for ferrous and non-ferrous material removal. The 3-flute geometry with a 30-degree helix spiral flute provides a balance of chip evacuation and surface finish quality. A titanium carbonitride (TiCN) coating adds surface hardness and reduces friction at the cutting edge. At 3/64 inch (0.0469 inch) cutting diameter with a 3/32 inch length of cut, this stub-length end mill is sized for fine-detail work in tight geometries. Machinists and tool-and-die professionals install and use this tool in CNC machining centers and manual mills.

This end mill is suited for finish milling, slotting, and contour work in small-feature applications. The stub length profile and 1/8 inch shank diameter make it appropriate for high-speed spindles and micro-machining setups where rigidity and runout control are critical. The centercutting design allows plunge entry, expanding its use in pocketing and ramp-entry toolpaths. Typical applications include mold and die work, aerospace components, and precision part manufacturing where small-diameter tooling and tight tolerances are required.

Key Features

• Micrograin solid carbide construction for hardness and extended tool life
• TiCN coating reduces friction and improves wear resistance at the cutting edge
• 3-flute, 30-degree helix spiral flute for balanced chip flow and finish quality
• Centercutting geometry enables plunge cutting and ramp entry
• Right-hand cut and right-hand flute direction for standard CNC spindle compatibility
• Stub length profile maximizes rigidity in small-diameter tooling applications

Compatibility

Designed as an OEM-style solid carbide square end mill for use in CNC machining centers and manual milling machines accepting a 1/8 inch straight shank collet or tool holder.

Installation Notes

This tool is installed by machinists into a collet or end mill holder sized for a 1/8 inch shank. Ensure the spindle is fully stopped and locked out before changing tooling. Verify runout at the spindle nose before securing the tool, as small-diameter carbide end mills are sensitive to collet concentricity. Handle carbide tooling carefully to avoid chipping the cutting edges during installation and storage.