Accupro 12185428 End Mill 3/8 in 4 Flute Solid Carbide

Product Description

The ACCUPRO 12185428 is a solid carbide roughing and finishing end mill designed for aggressive material removal and fine finish work in a single tool. Built with four flutes, a chipbreaker geometry, and a 40-degree helix angle, it efficiently clears chips while maintaining cut quality. The square end profile produces flat-bottomed features and shoulders. The micrograin solid carbide construction delivers hardness and wear resistance well beyond high-speed steel. At 0.375 inches in diameter with a 0.625-inch length of cut, this is a stub-length tool suited for rigid setups where deflection control matters. It is installed and used by machinists and toolroom professionals on CNC mills and manual knee mills.

This end mill is used in general machining applications where both roughing and finishing passes are required without a tool change. The chipbreaker reduces cutting forces during roughing, making it effective in harder materials and higher feed-rate programs. The bright uncoated finish makes it suitable for use in aluminum, non-ferrous metals, and certain ferrous alloys where coating adhesion or heat buildup is a concern. The stub length type promotes stiffness in setups with limited Z-clearance. The straight shank and 0.375-inch shank diameter fit standard collet systems and end mill holders.

Key Features

• Solid micrograin carbide construction for wear resistance and edge stability
• Chipbreaker geometry reduces cutting forces and improves chip evacuation during roughing
• 40-degree helix angle promotes smooth cutting action and efficient chip flow
• Square end profile for flat floors and 90-degree shoulder milling
• Center-cutting capable for plunge entry operations
• Right-hand cut and right-hand flute direction for standard spindle rotation
• Single-end, stub-length design for maximum rigidity in tight setups

Compatibility

Designed as an OEM-style replacement and standard-fit cutting tool for CNC and manual milling machines accepting a 0.375-inch straight shank in ER collets, Weldon holders, or equivalent end mill holders.

Installation Notes

Installation is performed by machinists using an appropriate collet or end mill holder torqued per the holder manufacturer specification. Confirm runout with a dial indicator before production cuts. Ensure the machine spindle is fully stopped and locked out before inserting or removing the tool. Do not exceed the tool manufacturer recommended speed and feed parameters for the workpiece material.