Accupro 12181819 Square End Mill 7/16 in 2 Flute Carbide

Product Description

The ACCUPRO 12181819 is a solid carbide square end mill designed for precision milling operations in metal and hard material applications. This two-flute, single-end tool features a 7/16 inch cutting diameter with a 1 inch length of cut and a 4 inch overall length, classifying it in the long-length category. The 40-degree helix angle and TiCN coating improve chip evacuation and resist heat buildup, making this end mill suitable for higher-feed passes in ferrous and non-ferrous materials. Micrograin carbide construction provides edge retention and rigidity at the cutting zone. Machinists and toolroom operators working in manual or CNC setups are the primary installers of this tool.

This end mill is suited for slotting, profiling, and plunge-capable operations in ferrous metals, aluminum, and similar materials where a long-reach, two-flute geometry is appropriate. The centercutting configuration allows direct plunge entry without a pilot hole, expanding its use in pocketing operations. Its long-length classification makes it useful when additional reach is needed to clear part geometry or fixturing in both vertical and horizontal milling setups.

Key Features

• 7/16 inch (0.4375 inch) cutting diameter with mill diameter tolerance of +0.000 / -0.002 inches
• TiCN finish for improved wear resistance and reduced built-up edge in metal cutting
• 40-degree helix angle with spiral flute geometry for efficient chip evacuation
• Centercutting design supports direct plunge entry into material
• Micrograin solid carbide substrate for edge stability in demanding cuts
• Right-hand cut, right-hand flute configuration — standard orientation for most milling spindles

Compatibility

Designed as an OEM-style tooling solution for use in standard 7/16 inch collets or end mill holders on CNC machining centers and manual knee mills requiring a long-length, two-flute square end mill.

Installation Notes

This end mill is installed by machinists and toolroom professionals using a compatible collet, end mill holder, or shrink-fit toolholder sized for a 7/16 inch shank. Confirm the holder is clean and free of debris before seating the tool, and torque retention hardware per the toolholder manufacturer specifications. Shank diameter tolerance is -0.0001 / -0.0004 inches, so verify holder fit before use. Always power down and lock out the spindle before changing tooling.