Accupro 95171870 3/4 in 3 Flute Roughing End Mill Zrn

Product Description

The ACCUPRO 95171870 is a roughing finishing end mill designed for aggressive material removal and semi-finish passes in a single tool. Built from micrograin solid carbide and coated with zirconium nitride (ZrN), it delivers extended tool life in ferrous and non-ferrous applications. The chipbreaker geometry breaks chips into manageable segments, reducing heat buildup and recutting during deep-pocket or slotting operations. With a 3/4 inch cutting diameter, 1.625 inch length of cut, and a 37-degree helix angle, this single-end mill suits CNC machining centers running right-hand cutting operations at elevated feed rates.

This end mill is suited for production and job-shop environments where operators need to combine roughing and semi-finishing cycles without a tool change. Typical applications include pocket milling, profiling, and slotting in steel, stainless, cast iron, and similar materials. The ZrN coating reduces friction and resists built-up edge, making it a practical choice for longer run times on harder workpiece materials. It is installed and used by CNC machinists and tool-and-die professionals running vertical or horizontal machining centers.

Key Features

• Micrograin solid carbide construction for rigidity and wear resistance
• ZrN coating reduces friction and extends tool life in ferrous materials
• Chipbreaker geometry controls chip formation during high-feed roughing passes
• 37-degree helix angle promotes smooth cutting action and efficient chip evacuation
• Right-hand flute direction and right-hand cutting for standard CNC spindle rotation
• Centercutting capable, allowing plunge entry into workpiece material

Compatibility

Designed as an OEM-style replacement or direct-application solid carbide end mill for CNC machining centers and manual mills accepting a 3/4 inch straight shank with standard ER or side-lock toolholders.

Installation Notes

Installation should be performed by a qualified CNC machinist or toolroom professional. Ensure the spindle is fully stopped and the machine is in an e-stop or locked-out state before loading or changing tooling. Seat the straight shank securely in a compatible 3/4 inch toolholder and verify runout before beginning a cut. Follow shop-standard feeds, speeds, and depth-of-cut parameters for the workpiece material and machine rigidity.