Accupro 2500219 Square End Mill 3/4 in 3 Flute Carbide Zrn

Product Description

The ACCUPRO 2500219 is a single-end square end mill designed for high-performance milling in ferrous and non-ferrous metals. Built from micrograin solid carbide, it delivers the rigidity and edge retention needed for demanding cuts. The tool features a variable helix geometry and a zirconium nitride (ZrN) coating that reduces heat buildup and extends tool life in production environments. With a 3/4-inch mill diameter, a 1-inch length of cut, and a 4-inch overall length, it is sized for stub-length applications where rigidity is the priority. Licensed machinists and CNC operators working on mills and machining centers are the primary users.

This end mill is suited for slot milling, profiling, and peripheral milling operations. The stub-length configuration reduces deflection, making it a practical choice for rigid setups where depth of cut is limited to 1 inch. The 3/4-inch shank diameter matches the mill diameter for direct collet or end mill holder mounting. The right-hand cutting and right-hand flute direction are standard for conventional CNC milling spindles. The center-cutting design allows for plunge entry, adding flexibility in toolpath programming.

Key Features

• Micrograin solid carbide construction for edge retention and wear resistance
• ZrN (zirconium nitride) coating reduces friction and extends tool life
• Variable helix flute geometry reduces harmonic vibration during cutting
• Center-cutting capable — supports plunge milling operations
• Stub-length design (1-inch LOC) maximizes rigidity and minimizes deflection
• Right-hand cut, right-hand spiral — compatible with standard CNC milling spindles

Compatibility

Designed as an OEM-style replacement or direct-use tooling for standard 3/4-inch collet chucks, shrink-fit holders, and end mill holders on CNC vertical and horizontal machining centers.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Ensure the spindle is fully stopped and the machine is in a safe state before mounting or removing the tool. Seat the shank fully in the holder to the recommended grip length and verify runout with a dial indicator before production cutting. Follow the machine tool manufacturer's torque specifications for the specific holder type in use.