Accupro 12178829 Square End Mill 1/4 in 2 Flute Carbide

Product Description

The ACCUPRO 12178829 is a solid carbide square end mill designed for precision milling in metal, alloy, and composite materials. It features a 1/4 inch cutting diameter with a 1-1/2 inch length of cut and a 4 inch overall length. The two-flute spiral design runs a 40-degree helix angle with a nACRo finish, which reduces friction and extends tool life in demanding cutting applications. This is a centercutting tool, meaning it can plunge directly into a workpiece. Micrograin carbide construction provides hardness and wear resistance suited to high-speed machining. Machinists and CNC operators working in job shops, maintenance environments, and production settings are the primary users.

This end mill fits standard 1/4 inch collets and tool holders. It is well suited for slotting, profiling, and plunge-cutting operations on CNC machining centers and manual mills. The right-hand cut and right-hand flute configuration is the industry-standard orientation for conventional and climb milling. The nACRo coating makes it a strong candidate for dry or minimal-lubrication cutting in ferrous and non-ferrous materials where heat buildup is a concern.

Key Features

• Solid micrograin carbide construction for hardness and dimensional stability
• nACRo finish reduces friction and extends tool life in high-heat applications
• 40-degree helix angle promotes efficient chip evacuation and smooth cutting action
• Centercutting design allows direct plunge entry into workpiece material
• Right-hand cut, right-hand flute — standard orientation for most milling setups
• Mill diameter tolerance of +0.000 / -0.002 inches for consistent fit and finish

Compatibility

Designed for use in any standard 1/4 inch collet or end mill holder on CNC machining centers and manual milling machines.

Installation Notes

Installation is performed by qualified machinists or CNC operators. Ensure the spindle is fully powered down and locked out before loading or removing any tooling. Seat the shank fully into the collet or holder and torque the retention hardware according to the tool holder manufacturer specifications. Inspect the cutting edges for chips or damage before each use, and verify runout at the tool tip with a dial indicator prior to production cuts.