Accupro 12183416 Square End Mill 7/16 in 4 Flute Carbide

Product Description

The ACCUPRO 12183416 is a solid carbide square end mill designed for precision material removal in demanding machining applications. Built from micrograin carbide and finished with an AlTiN coating, this tool delivers wear resistance and thermal stability across a range of workpiece materials including hardened steels, stainless, and cast iron. The 4-flute, spiral-flute geometry with a 40-degree helix angle promotes efficient chip evacuation and stable cutting action. Centercutting capability allows for direct plunge entry without pre-drilling. At 4 inches overall length, this end mill falls into the extra-long category, giving machinists reach for deep-pocket and extended-reach operations where standard-length tooling falls short.

This end mill suits CNC machining centers and manual mills in job shop, production, and toolroom environments. The extra-long overall length and 1.375-inch length of cut make it well suited for milling deep pockets, slots, and contoured features in ferrous and non-ferrous materials. Right-hand cut and right-hand flute orientation follow standard spindle conventions, making setup straightforward. The AlTiN finish extends tool life when cutting dry or with minimal lubrication at elevated cutting speeds. Machinists working in aerospace, mold-and-die, and general metalworking will find this geometry a practical fit for multi-pass profiling and slotting operations requiring extended reach.

Key Features

• Solid micrograin carbide construction for rigidity and edge retention
• AlTiN finish provides thermal and oxidation resistance for dry and high-speed cutting
• 40-degree helix angle promotes smooth chip flow and reduced cutting forces
• Centercutting design allows direct plunge milling without a pilot hole
• Extra-long 4-inch OAL with 1.375-inch length of cut for deep-reach applications
• Right-hand cut and right-hand flute for standard CNC and manual mill spindle use

Compatibility

Designed as a direct-fit tooling solution for standard 7/16-inch collets, end mill holders, and shrink-fit toolholders on CNC machining centers and manual knee mills requiring a 7/16-inch shank diameter.

Installation Notes

Installation should be performed by a qualified machinist following shop safety protocols. Ensure the machine spindle is fully stopped and power is locked out before inserting or removing the tool from the holder. Verify collet or holder bore size matches the 7/16-inch shank before clamping; observe the shank diameter tolerance specification to confirm proper grip. Do not exceed the holder's clamping torque range as specified by the toolholder manufacturer, and inspect the cutting edges for chipping before each use.