Accupro 12177556 Tapered Ball End Mill Solid Carbide

Product Description

The ACCUPRO 12177556 is a solid carbide tapered ball end mill designed for precision milling of contoured surfaces, deep cavities, and draft-angle features in ferrous and non-ferrous materials. The tool features a 0.5 degree taper angle per side and a 1/8 inch small end diameter, making it well suited for fine detail work where tight tolerances and minimal wall deviation are critical. With three right-hand spiral flutes ground from micrograin carbide, the 12177556 provides a smooth finish and reliable chip evacuation in demanding milling applications. A bright, uncoated finish keeps the tool versatile across a wide range of workpiece materials.

This end mill is used in CNC machining centers for finishing passes on mold and die cavities, aerospace components, and precision medical parts where slight draft angles are required. The 3/4 inch length of cut and 2 inch overall length support reach into moderate-depth pockets without excessive overhang. The 3/16 inch shank diameter fits standard collet chucks and shrink-fit holders commonly found in vertical and horizontal machining centers. Center-cutting capability allows plunge entry where needed. This tool is typically run by machinists and CNC programmers working to close tolerances in job shop or production environments.

Key Features

• 0.5 degree taper angle per side for controlled draft and tapered wall geometry
• Ball end profile with 1/16 inch nose radius for smooth contour and radius blending
• Micrograin solid carbide construction for hardness, wear resistance, and edge retention
• Three right-hand spiral flutes at 30 degree helix angle for efficient chip flow
• Center-cutting design supports direct plunge entry into workpiece material
• Bright/uncoated finish suitable for aluminum, brass, plastics, and general steels

Compatibility

Designed as a direct-fit replacement for standard 3/16 inch shank tapered ball end mills in CNC collet chucks, ER collet systems, and shrink-fit toolholders. Verify taper angle and shank diameter against your toolholder specification before installation.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the machine spindle is fully stopped and the tool changer is in a safe state before mounting or removing end mills. Secure the shank to the minimum recommended engagement depth specified by your toolholder manufacturer to prevent pullout under cutting loads. Confirm runout with a dial indicator after clamping, particularly for fine-detail or finish-pass operations where deviation directly affects surface quality.