M.a. Ford 27831220B Square End Mill 5/16 in 5 Flute Carbide

Product Description

The M.A. FORD 27831220B is a single-end square end mill designed for precision milling operations in metalworking and machining applications. Built from micrograin solid carbide, this 5-flute tool measures 5/16 inches in diameter with a 1-1/4 inch length of cut and a 3 inch overall length. The 40-degree helix angle promotes smooth chip evacuation and reduces cutting forces across a range of ferrous and non-ferrous materials. An AlCrN (aluminum chromium nitride) coating adds thermal stability and wear resistance, extending tool life in high-speed and dry cutting conditions. This end mill ships as a single-piece unit and is suited for machinists and tooling specialists working in production or job-shop environments.

This end mill is intended for milling slots, profiles, and contours in materials that benefit from a high-helix, coated carbide geometry. The variable index flute spacing reduces harmonic chatter during aggressive cuts, making it a practical choice for finishing and semi-finishing passes. The 5/16 inch shank diameter matches the 5/16 inch cutting diameter for direct collet or end mill holder mounting. Right-hand cut and right-hand flute direction are standard for conventional CNC and manual milling machines. The centercutting design allows plunge entry where required.

Key Features

• Micrograin solid carbide construction for rigidity and edge retention
• AlCrN coating provides high-temperature wear resistance for dry or minimal-lubrication cutting
• 5 flutes with variable index spacing to reduce chatter and improve surface finish
• 40-degree helix angle for efficient chip evacuation in deeper cuts
• Centercutting geometry allows direct plunge milling
• Right-hand cut and right-hand flute direction for standard spindle operation

Compatibility

Designed for use in standard 5/16 inch collets, end mill holders, or shrink-fit tooling systems on CNC machining centers and conventional milling machines. No specific OEM machine compatibility was stated in the product data.

Installation Notes

Installation is performed by qualified machinists or tooling technicians. Ensure the spindle is fully stopped and the machine is in a safe, locked-out state before changing tooling. Seat the shank fully in the holder and verify runout with a dial indicator before cutting. Follow the tool manufacturer and machine manufacturer guidelines for speeds, feeds, and depth of cut for the specific workpiece material.