Accupro 12178893 Square End Mill 29/64 in 3 Flute Carbide

Product Description

The ACCUPRO 12178893 is a solid carbide square end mill designed for precision milling operations in metal cutting and machining applications. It features a 29/64 inch (0.4531 inch) cutting diameter, a 1 inch length of cut, and a 40-degree helix angle that promotes efficient chip evacuation and smooth cutting action. The three-flute geometry balances chip load capacity with surface finish quality. An nACRo coating provides enhanced wear resistance and heat reduction at the cutting edge, extending tool life in demanding materials. This end mill is a single-end tool intended for use in CNC machining centers and manual milling machines by machinists and tool and die professionals.

This end mill is suited for milling slots, pockets, profiles, and contours in ferrous and non-ferrous metals as well as hardened steels where a coated carbide tool is appropriate. The right-hand cutting and right-hand flute direction make it compatible with standard spindle configurations. The 1/2 inch shank diameter fits common collet and end mill holder systems. The micrograin carbide substrate supports high-speed applications where rigidity and edge retention are critical. It is packaged as a single unit and carries a minimum order quantity of one.

Key Features

• 29/64 inch (0.4531 inch) cutting diameter with a tolerance of +0.000 / -0.002 inches
• nACRo coating for improved wear resistance and thermal protection at the cutting edge
• 40-degree helix angle promotes efficient chip flow and reduces cutting forces
• 3-flute spiral geometry balances material removal rate with surface finish quality
• Micrograin solid carbide substrate for rigidity and edge retention at elevated speeds
• Center-cutting design allows plunge entry into workpiece material

Compatibility

Designed as an OEM-style replacement and standard tooling option for CNC machining centers and manual mills accepting a 1/2 inch shank end mill holder or collet.

Installation Notes

Installation should be performed by a qualified machinist following established safe tooling practices. Ensure the machine spindle is fully powered down and locked out before changing tooling. Seat the shank fully and evenly in the collet or end mill holder to the depth specified by the holder manufacturer, and torque the retention nut or set screw according to the holder manufacturer guidelines. Verify runout with a dial indicator after installation before initiating a cut.