Accupro 12177444 Tapered End Mill 3 Flute Solid Carbide Uncoated

Product Description

The ACCUPRO 12177444 is a solid carbide tapered end mill designed for precision milling operations requiring controlled taper angles and tight tolerances. It features a 0.5-degree taper per side, a small end diameter of 0.25 inches, and a 2.25-inch length of cut, making it well suited for tapered slot milling, die work, and contour profiling. The micrograin carbide substrate provides rigidity and wear resistance in ferrous and non-ferrous materials. Three right-hand spiral flutes deliver efficient chip evacuation while maintaining a smooth cutting action. The uncoated finish suits applications where coating interaction with workpiece material is a concern or where frequent resharpening is expected.

This end mill is used in CNC machining centers and manual milling setups across tool-and-die, mold making, aerospace component, and precision parts manufacturing environments. The centercutting geometry allows plunge entry, expanding its utility in pocketing and slotting operations. The 5/16-inch shank diameter fits standard collet chucks and end mill holders common in production and job shop settings. Its 4-inch overall length provides reach into deeper cavities without requiring extended-reach toolholders in most standard applications.

Key Features

• 0.5-degree taper per side for precise angular wall geometry
• Micrograin solid carbide construction for rigidity and extended tool life
• Centercutting design allows direct plunge entry into workpiece material
• Three right-hand spiral flutes for efficient chip clearance and smooth finish
• Uncoated surface for easy visual wear inspection and straightforward regrinding
• 5/16-inch shank compatible with standard collet and end mill holder systems

Compatibility

Designed as an OEM-style replacement or direct-use tapered end mill compatible with standard 5/16-inch collet chucks and end mill holders on CNC and manual milling machines.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the machine spindle is fully stopped and locked out before loading or changing tooling. Seat the shank fully into the collet or holder and torque retention hardware to the toolholder manufacturer specification. Verify runout with a dial indicator before beginning production cuts to prevent premature tool wear or workpiece scrap.