Accupro 315140 Square End Mill 3/16 in 3 Flute Carbide Zrn

Product Description

The ACCUPRO 315140 is a solid carbide square end mill designed for precision milling operations in metalworking and machining applications. It features a 3/16 inch cutting diameter, a 3/4 inch length of cut, and three right-hand spiral flutes with a 37-degree helix angle. The micrograin carbide substrate provides wear resistance and edge retention in demanding cutting conditions. A zirconium nitride (ZrN) coating reduces friction and extends tool life when cutting ferrous and non-ferrous materials. This is a single-end, centercutting tool suitable for slotting, profiling, and plunge operations.

This end mill is suited for use in CNC machining centers and manual mills where a small-diameter, long-flute tool is required. The long-length classification and 3/4 inch LOC make it well-suited for reaching into pockets or features that standard-length end mills cannot access. It is commonly used by machinists working with aluminum, steel, and similar materials in job shops, tool rooms, and production environments.

Key Features

• 3/16 inch cutting diameter with matching 3/16 inch shank diameter for direct collet or chuck mounting
• 3/4 inch length of cut provides extended reach compared to standard-length end mills
• 37-degree helix angle promotes smooth chip evacuation and reduced cutting forces
• ZrN coating improves lubricity and tool life on a broad range of workpiece materials
• Micrograin solid carbide construction for rigidity and edge sharpness
• Centercutting geometry allows direct plunge entry into the workpiece

Compatibility

Designed as an OEM-style replacement or direct-fit tooling option for any milling machine or machining center accepting a 3/16 inch shank diameter via collet, end mill holder, or equivalent tool-holding system.

Installation Notes

Installation should be performed by a qualified machinist following standard tooling change procedures. Ensure the machine spindle is fully stopped and locked out before installing or removing the end mill. Secure the shank to the full recommended engagement depth in the tool holder to minimize runout and prevent pullout under load. Verify tool runout with a dial indicator before beginning a production cut.