Accupro 12181431 Square End Mill 25/64 in 2 Flute Carbide

Product Description

The ACCUPRO 12181431 is a solid carbide square end mill designed for precise milling operations in ferrous and non-ferrous materials. It features a 25/64 inch (0.3906 inch) cutting diameter, a 1 inch length of cut, and a 40-degree helix angle that promotes efficient chip evacuation and smooth cutting action. The micrograin carbide construction delivers hardness and wear resistance suited to demanding production environments. This is a single-end, uncoated tool in a regular-length configuration. It is centercutting, allowing plunge entry into workpieces. HVAC sheet metal fabricators, maintenance machinists, and production shops running manual or CNC mills are the primary users.

This end mill fits standard milling applications where a 7/16 inch shank diameter collet or end mill holder is used. The right-hand cut with right-hand spiral flutes makes it compatible with conventional vertical and horizontal milling machine setups. The 2-3/4 inch overall length keeps the tool rigid in typical light-to-medium roughing and finishing passes on steel, aluminum, and similar materials. No extended reach is required for standard-depth pocketing and slotting work within its 1 inch length of cut.

Key Features

• Solid micrograin carbide construction for hardness and edge retention
• 25/64 inch (0.3906 inch) cutting diameter with tight tolerance of +0.000 / -0.002 inches
• 40-degree helix angle for efficient chip flow and reduced cutting forces
• Centercutting design allows direct plunge entry without pre-drilled holes
• 2-flute geometry provides good chip clearance in slotting and pocketing
• Right-hand cut and right-hand flute direction for standard mill spindle rotation

Compatibility

Designed for use in milling machines and machining centers equipped with a 7/16 inch collet, end mill holder, or equivalent toolholding system accepting a 7/16 inch shank diameter.

Installation Notes

Installation should be performed by a qualified machinist familiar with cutting tool safety and machine setup procedures. Ensure the machine spindle is fully stopped and locked out before inserting or removing the end mill from the toolholder. Seat the shank to the recommended engagement depth in the collet or holder and torque the retention mechanism per the toolholder manufacturer specifications. Inspect the cutting edges for chips or damage before each use.