Accupro 12176925 Square End Mill 3/8 Inch 4 Flute Carbide

Product Description

The ACCUPRO 12176925 is a solid carbide square end mill designed for precision milling in metalworking and machining applications. It features a 3/8-inch cutting diameter with a 9/16-inch length of cut and a 2-inch overall length. The 4-flute, right-hand spiral design with a 40-degree helix angle promotes efficient chip evacuation and smooth cutting action. The nACRo finish enhances wear resistance and thermal stability, extending tool life in demanding cuts. This end mill is centercutting, allowing plunge entry, and is manufactured from micrograin solid carbide for consistent edge integrity and dimensional accuracy.

This end mill is suited for milling ferrous and non-ferrous metals, alloys, and similar materials in CNC machining centers and manual mills. The 3/8-inch shank diameter matches standard ER and straight-bore collet systems common in production and job shop environments. With no chipbreaker and no extended reach, it is optimized for standard-depth slotting, profiling, and peripheral milling operations. Machinists and CNC operators in aerospace, general manufacturing, and tool-and-die applications will find this a direct-fit tool for everyday milling work.

Key Features

• Solid micrograin carbide construction for edge retention and dimensional stability
• nACRo coating improves wear resistance and heat resistance at the cutting edge
• 40-degree helix angle with 4 spiral flutes for efficient chip flow and surface finish
• Centercutting design allows direct plunge entry without pre-drilling
• Right-hand cut and right-hand flute for compatibility with standard spindle direction
• Mill diameter tolerance of +0.000 / -0.002 inches for consistent fit and finish

Compatibility

Designed as a standard-shank solid carbide square end mill with a 3/8-inch shank diameter, compatible with ER collet chucks, straight-bore tool holders, and similar workholding systems sized for 3/8-inch shanks.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Ensure the machine spindle is fully stopped and locked out before changing tooling. Seat the shank fully into the collet or tool holder and torque the collet nut to the tool-holder manufacturer specification. Verify runout with a dial indicator before beginning a production cut, and confirm spindle direction matches the right-hand cut designation of this tool.