Accupro 12277187 Ball End Mill 1/16 in 4 Flute Solid Carbide

Product Description

The ACCUPRO 12277187 is a miniature solid carbide ball end mill designed for precision milling operations in tight geometries and small-feature work. Built from micrograin solid carbide, it measures 0.0625 inches (1/16 inch) in mill diameter with a 0.0940-inch length of cut and a 1/8-inch shank diameter. The 4-flute, single-end configuration with a 30-degree right-hand helix delivers smooth chip evacuation and stable cutting action in ferrous and non-ferrous materials. The bright, uncoated finish suits applications where coating compatibility or re-sharpening is a consideration. Machinists and tool-and-die professionals install this end mill in CNC machining centers and manual mills for fine detail work.

This miniature ball end mill is suited for small-scale profiling, slotting, and contouring where a tight diameter is required. The 1/16-inch mill diameter and 1-1/2-inch overall length make it well matched to mold-making, die work, and intricate part features found in precision manufacturing environments. Right-hand cutting and right-hand flute direction are standard for conventional CNC spindle rotation. The spiral flute geometry and micrograin carbide grade support consistent performance in both roughing and finishing passes at small scales.

Key Features

• Micrograin solid carbide construction for rigidity and wear resistance at miniature diameters
• 4-flute design promotes surface finish quality and cutting stability
• 30-degree right-hand helix angle for efficient chip evacuation
• Bright, uncoated finish compatible with re-sharpening and dry or lubricated cutting
• Single-end configuration with 0.0940-inch length of cut optimized for short-reach precision work
• Mill diameter tolerance of +0.0000/-0.0010 inches for consistent fit in tight tolerances

Compatibility

Designed as an OEM-style replacement and standard fitment for CNC machining centers and manual mills that accept a 1/8-inch shank diameter end mill in miniature tooling applications.

Installation Notes

Installation is performed by machinists or tooling technicians using a compatible collet or tool holder sized for a 1/8-inch shank. Ensure the spindle is fully de-energized and the machine is in a safe lockout state before changing tooling. Verify runout with a dial indicator after seating the end mill to avoid deflection at this small diameter. Handle miniature carbide tooling with care to prevent chipping of the cutting edges prior to use.