Accupro 14777965 Square End Mill 3/4 in 5 Flute Carbide

Product Description

The ACCUPRO 14777965 is a solid carbide square end mill designed for high-performance milling in ferrous and non-ferrous materials. It features a 3/4 inch diameter cutting profile with five flutes and a 2-1/4 inch length of cut, making it suited for deeper slot, profile, and peripheral milling passes. The micrograin carbide substrate provides hardness and edge retention under demanding cutting conditions. The 36-degree helix angle promotes efficient chip evacuation, and a variable index geometry combined with integrated chipbreakers reduces chatter and vibration during aggressive cuts. This tool is sold individually and handled by skilled machinists and CNC programmers in shop environments.

This end mill is intended for use in vertical machining centers, CNC mills, and manual knee mills where a 3/4 inch straight-cylindrical shank is the standard holder interface. The bright, uncoated finish makes it a solid choice for applications where coating interaction with the workpiece material is a concern, or where regrinding and reuse are part of the shop's tooling program. The Series AL-5 designation indicates it is part of ACCUPRO's extended-length carbide end mill lineup, suited for reaching into pockets and cavities that shorter tools cannot access. A right-hand cut and right-hand flute direction are standard for conventional CNC spindle rotation.

Key Features

• 5-flute geometry increases feed rate potential compared to 4-flute designs in stable setups
• Variable index flute spacing reduces harmonic chatter and vibration during deep cuts
• Chipbreaker geometry assists chip control in long-reach slot milling and pocketing operations
• 36-degree helix angle promotes upward chip flow and reduces heat buildup at the cutting edge
• Micrograin solid carbide substrate delivers edge strength and dimensional consistency across the tool life
• Bright, uncoated finish supports regrinding and suits applications where coatings are undesirable

Compatibility

Designed as a direct-fit replacement for 3/4 inch straight-cylindrical shank tool holders including ER collet chucks, hydraulic holders, and shrink-fit systems accepting a 0.75 inch shank diameter. No specific model compatibility was stated in the product data.

Installation Notes

Installation is performed by machinists using an appropriate 3/4 inch collet, end mill holder, or shrink-fit system rated for the tool diameter and cutting forces involved. Ensure the machine spindle is fully stopped and the tool changer or spindle lock is engaged before mounting or removing the tool. Confirm runout with a dial indicator after seating to verify the shank is fully engaged in the holder. Follow shop safety protocols and machine manufacturer guidelines for speeds, feeds, and depth-of-cut parameters appropriate to the workpiece material.