Accupro 12177531 Tapered End Mill 3 Flute Solid Carbide

Product Description

The ACCUPRO 12177531 is a solid carbide tapered end mill designed for precision milling operations requiring a controlled taper geometry. With a 5-degree taper per side and a 1/4 inch small end diameter, this tool produces accurate tapered walls and angled features in a single pass. The 3-flute spiral configuration with a 30-degree helix angle promotes efficient chip evacuation while maintaining a smooth surface finish. Micrograin carbide construction provides the hardness and wear resistance needed for demanding cuts in ferrous and non-ferrous materials. The bright uncoated finish makes it well-suited for applications where coating interaction with the workpiece is a concern.

This end mill is used in CNC machining centers and manual mills for creating draft angles, tapered pockets, dovetail lead-ins, and mold or die work where precise taper control is required. The square end geometry allows flat-bottom entry and side milling along tapered walls. With a 1 inch length of cut and a 2-3/4 inch overall length, it is sized for moderate-depth work in both production and job-shop environments. The 7/16 inch shank fits standard ER and side-lock toolholders common in vertical and horizontal machining setups.

Key Features

• 5-degree taper per side for precise angled wall geometry
• Micrograin solid carbide construction for extended tool life and edge sharpness
• 3-flute spiral design with 30-degree helix angle for efficient chip removal
• Center-cutting capable, allowing direct plunge entry
• Right-hand flute direction compatible with standard spindle rotation
• Bright uncoated finish suitable for a wide range of workpiece materials

Compatibility

Designed as a direct-fit replacement or standard tooling option for CNC machining centers and manual mills using 7/16 inch shank toolholders, including ER collet chucks and side-lock holders of the appropriate bore size.

Installation Notes

This tool should be installed by a qualified machinist or CNC operator following the machine tool manufacturer guidelines for tool holding and runout tolerance. Ensure the spindle and toolholder are clean and free of chips before seating the shank. Confirm proper collet size or holder bore before tightening to the manufacturer-specified clamping procedure. Always verify spindle rotation direction matches the right-hand flute orientation before initiating a cut.