Accupro 12177549 Tapered End Mill 3 Flute Solid Carbide

Product Description

The ACCUPRO 12177549 is a solid carbide tapered end mill designed for precision milling operations requiring a consistent taper angle. With a 10-degree taper per side and a 1/4-inch small end diameter, this tool generates angled walls and draft surfaces in a single pass. The 3-flute, right-hand spiral configuration evacuates chips efficiently while maintaining a smooth cut. Built from micrograin solid carbide, it delivers rigidity and edge retention well beyond what high-speed steel tooling can provide. The uncoated finish suits applications where base carbide performance is preferred or when post-machining coating is applied by the end user. Machinists and tool-and-die professionals are the primary installers of this cutting tool.

This end mill is suited for machining tapered pockets, mold cavities, die work, and angled features in ferrous and non-ferrous materials. The 1-1/4-inch length of cut accommodates moderate-depth passes, while the 3/4-inch shank diameter provides a secure grip in standard end mill holders or collet chucks. The 4-inch overall length gives adequate reach for typical vertical and horizontal machining center setups. Centercutting capability allows plunge entry directly into the workpiece without a pre-drilled pilot hole, adding flexibility to the toolpath.

Key Features

• 10-degree taper per side for consistent draft angle on walls and pockets
• Micrograin solid carbide construction for extended tool life and edge stability
• 3 right-hand spiral flutes with 30-degree helix angle for efficient chip evacuation
• Centercutting design allows direct plunge entry without a pilot hole
• Uncoated finish compatible with a wide range of workpiece materials
• Square end profile for flat-bottomed tapered features

Compatibility

Designed for use in standard end mill holders and collet chucks accepting a 3/4-inch shank diameter on vertical machining centers, horizontal machining centers, and manual knee mills.

Installation Notes

Installation should be performed by a qualified machinist following the machine tool manufacturer's runout and torque specifications for the holder style in use. Ensure the spindle is fully stopped and the machine is in a safe, locked-out state before inserting or removing the tool. Verify shank seating depth meets the minimum engagement requirement for the holder to prevent pull-out under cutting loads. Inspect the cutting edges for chips or damage before each use.