Accupro 95169775 Square End Mill 1/4 in 7 Flute Carbide

Product Description

The ACCUPRO 95169775 is a solid carbide square end mill designed for high-performance milling in ferrous and hardened materials. It features a 1/4 inch diameter with a 3/4 inch length of cut and a 7-flute configuration that supports higher feed rates and improved surface finish compared to standard 4- or 5-flute tools. The 38-degree helix angle promotes efficient chip evacuation and reduces cutting forces. An AlTiCrN coating provides thermal resistance and extended tool life in demanding dry or semi-dry machining environments. This single-end tool is sized for use in CNC machining centers and manual mills by machinists and tool-and-die professionals.

This end mill is suited for finish milling, slotting, and profiling operations in steel, stainless, cast iron, and hardened alloys. The micrograin carbide substrate offers rigidity and wear resistance in aggressive cutting conditions. With a 1/4 inch shank diameter and 2.5 inch overall length, it fits standard collet and end mill holders used in vertical and horizontal machining centers across production and job-shop environments. The HS series designation indicates a high-speed geometry optimized for tighter tolerances and smoother wall finishes.

Key Features

• 7-flute design increases chip load per tooth and supports faster feed rates in finishing passes
• AlTiCrN coating delivers high hardness and oxidation resistance for extended tool life in ferrous materials
• 38-degree helix angle promotes smooth cutting action and efficient chip flow
• Micrograin solid carbide substrate provides stiffness and edge retention in hardened workpieces
• Right-hand cutting and right-hand flute direction for standard CNC and manual mill setups
• Single-end configuration with a 1/4 inch shank for compatibility with standard collet holders

Compatibility

Designed as an OEM-style replacement or direct-use end mill for standard 1/4 inch collet holders and end mill chucks used in CNC machining centers and manual vertical mills.

Installation Notes

Installation and tool changes should be performed by a qualified machinist with the spindle fully stopped and machine power locked out per shop safety procedures. Ensure the collet or end mill holder is clean and free of chips before seating the shank. Verify runout with a dial indicator after clamping to confirm proper seating. Follow the tool manufacturer and machine builder guidelines for speeds and feeds appropriate to the workpiece material and depth of cut.