Accupro 12181911 Square End Mill 11/64 in 3 Flute Carbide

Product Description

The ACCUPRO 12181911 is a solid carbide square end mill designed for precise milling operations in metal, composite, and hard material applications. It features a 0.1719 inch (11/64 inch) mill diameter with a 5/8 inch length of cut and a 3/16 inch shank diameter, giving it a compact profile suited for tight-tolerance work. The 40-degree helix angle and spiral flute geometry promote efficient chip evacuation and smooth cutting action. Built from micrograin solid carbide, this end mill delivers rigidity and wear resistance in demanding cutting environments. Licensed machinists and CNC operators specify this tool for finish and semi-finish milling passes.

This end mill is suited for use in vertical machining centers, CNC mills, and manual knee mills where a small-diameter, short-reach tool is required. Its uncoated micrograin carbide construction makes it a practical choice for dry or light-coolant cutting in ferrous and non-ferrous materials. The centercutting design allows plunge entry, adding versatility for slotting, profiling, and pocket milling in production and job-shop settings.

Key Features

• 11/64 inch (0.1719 inch) mill diameter with +0.000/-0.002 inch diameter tolerance
• 3/16 inch shank diameter with -0.0001/-0.0004 inch shank tolerance
• 5/8 inch length of cut, 2 inch overall length — regular length series
• 3-flute spiral configuration with 40-degree helix angle for efficient chip evacuation
• Centercutting geometry allows direct plunge entry
• Micrograin solid carbide construction, uncoated, right-hand cut and right-hand flute

Compatibility

Designed as a direct-fit replacement or standard tooling selection for CNC and manual milling machines accepting a 3/16 inch straight shank end mill.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Secure the shank in a collet or end mill holder rated for the 3/16 inch shank diameter, ensuring the holder is clean and free of debris before clamping. Verify spindle runout is within acceptable limits before starting a cut. Always power down and lock out the spindle before changing tooling.