Accupro 12181765 Square End Mill 9/16 in 2 Flute Carbide

Product Description

The ACCUPRO 12181765 is a solid carbide square end mill designed for precision milling operations in ferrous and non-ferrous materials. Built from micrograin carbide and finished with a TiCN coating, this tool delivers extended wear resistance and improved surface finish in demanding cutting environments. It features a 9/16 inch cutting diameter, a 3 inch length of cut, and a 40-degree helix angle on a spiral flute geometry. The 2-flute design promotes efficient chip evacuation in slotting and pocketing applications. Machinists and toolroom operators will find this configuration well-suited for long-reach work where a standard-length end mill cannot access the workpiece.

This end mill is intended for use in vertical machining centers, CNC mills, and manual knee mills. The long-length body — 6 inches overall with a 3 inch length of cut — supports deep-pocket profiling and extended-reach contouring. The centercutting geometry allows for direct plunge entry as well as ramping and helical interpolation. Right-hand cut and right-hand flute configuration matches standard spindle rotation on most milling machines. It is packaged and sold as a single unit.

Key Features

• Micrograin solid carbide construction for improved hardness and edge retention
• TiCN finish increases surface hardness and reduces friction at the cutting edge
• 40-degree helix angle promotes smooth cutting action and effective chip flow
• Centercutting design supports plunge milling, ramping, and helical entry
• Long-length profile with 6 inch OAL and 3 inch LOC enables deep-pocket access
• Right-hand cut and right-hand flute for standard CNC and manual mill compatibility

Compatibility

Designed as a direct-fit tooling solution for standard 9/16 inch ER, set-screw, and shrink-fit tool holders used in CNC machining centers and manual milling machines requiring a long-length 2-flute square end mill.

Installation Notes

Installation should be performed by a qualified machinist following shop safety procedures. Ensure the spindle is fully stopped and the machine is powered down before changing tooling. Insert the shank fully into the tool holder to maximize rigidity and minimize runout — the shank diameter tolerance of -0.0001 to -0.0004 inches is designed for a controlled fit in precision holders. Verify tool projection and holder clamping torque per the tool holder manufacturer specifications before beginning a cut.