Accupro 95169691 Square End Mill 1in 4 Flute Solid Carbide

Product Description

The ACCUPRO 95169691 is a solid carbide square end mill designed for high-performance milling in demanding machining applications. It features a 1-inch cutting diameter, a 1.5-inch length of cut, and a 4-flute spiral configuration with a 38-degree helix angle. The cutting edges are coated with AlTiCrN, a hard physical vapor deposition coating that improves heat resistance and tool life in ferrous and hardened materials. This is a single-end, right-hand cutting, right-hand flute tool built on a micrograin carbide substrate for edge stability under aggressive feed rates. Variable index flute spacing helps reduce chatter during deep cuts.

This end mill is suited for CNC machining centers performing slotting, peripheral milling, and profiling operations in steel, stainless steel, cast iron, and similar hard materials. The 1-inch shank diameter matches the cutting diameter, making it compatible with standard ER or end mill holders of the same bore. It fits production environments in job shops, toolrooms, and manufacturing cells where tight tolerances and consistent surface finishes are required. The HS series designation indicates a high-performance geometry intended for harder workpiece materials and elevated cutting speeds.

Key Features

• 1-inch cutting diameter with 1.5-inch length of cut for moderate-depth milling passes
• AlTiCrN coating provides high heat resistance and extended tool life in ferrous materials
• 38-degree helix angle promotes smooth chip evacuation and reduced cutting forces
• Variable index flute spacing reduces harmonic chatter during full-slot and side-milling operations
• Micrograin solid carbide substrate delivers edge strength and resistance to micro-chipping
• Center-cutting capability allows plunge entry without a pre-drilled pilot hole

Compatibility

Designed as a direct-fit replacement end mill for CNC machining centers and manual mills using standard 1-inch bore end mill holders or collet chucks. No specific OEM system compatibility was stated in the product data.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the machine spindle is fully stopped and the tool holder is de-energized before changing tooling. Secure the shank to the minimum recommended engagement depth per the holder manufacturer guidelines, and verify runout with a dial indicator before initiating a cut. Follow applicable shop safety standards and machine manufacturer procedures for tooling changes.