Accupro 12276847 Square End Mill 0.07in 4 Flute Carbide

Product Description

The ACCUPRO 12276847 is a solid carbide square end mill designed for precision milling operations in metalworking and machining applications. With a 0.07-inch cutting diameter and a 0.21-inch length of cut, this tool is built for tight-tolerance work in small-bore and fine-detail milling tasks. The micrograin carbide construction delivers hardness and wear resistance suited to ferrous and non-ferrous materials. At 1.5 inches overall length with a 0.125-inch shank diameter, the tool fits standard collet and end mill holders common in CNC and manual milling setups. The 30-degree helix angle promotes chip evacuation and reduces cutting forces at small diameters.

This end mill is used in precision machining environments including job shops, tool rooms, and production CNC cells. It is appropriate for slotting, profiling, and light pocketing operations where a small-diameter, high-rigidity tool is required. The 4-flute configuration provides a good surface finish on finishing passes. The bright uncoated finish makes it well-suited for non-ferrous materials such as aluminum, brass, and copper, as well as general-purpose steel milling where coating is not specified.

Key Features

• 0.07-inch cutting diameter with a mill diameter tolerance of +0.0000 / -0.0010 inches for tight fitment accuracy
• 4-flute spiral flute design for improved surface finish and feed rate capability
• Micrograin solid carbide construction for hardness and edge retention at small diameters
• 30-degree right-hand helix with right-hand cutting direction for standard CNC and manual mill compatibility
• Centercutting geometry allows plunge entry as well as conventional side milling
• Bright uncoated finish suitable for non-ferrous and general-purpose milling applications

Compatibility

Designed for use with standard 1/8-inch collets and end mill holders on CNC machining centers and manual knee mills. Shank diameter tolerance of -0.0001 / -0.0003 inches ensures consistent runout in precision toolholding systems.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the machine spindle is fully stopped and locked out before inserting or removing the tool from the holder. Verify collet condition and cleanliness before seating the shank to maintain runout within acceptable limits. Do not exceed the tool manufacturer's recommended speeds and feeds for the workpiece material and depth of cut.