Accupro 12181755 Square End Mill 3/8 in 2 Flute Carbide

Product Description

The ACCUPRO 12181755 is a solid carbide square end mill designed for precision milling operations in metalworking and machining applications. Built from micrograin carbide, it delivers the edge retention and rigidity needed for aggressive cuts in ferrous and non-ferrous materials. The 0.375 inch cutting diameter pairs with a 1.75 inch length of cut and a 4 inch overall length, placing it in the extra-long category for reaching deeper pockets and stepped features. A 40-degree helix angle promotes efficient chip evacuation and smooth cutting action. This end mill is uncoated, making it well-suited for applications where coating buildup is a concern or where re-sharpening is anticipated.

This end mill is used in CNC machining centers, knee mills, and manual milling machines across job shops, tool rooms, and production environments. The centercutting geometry allows the tool to plunge directly into workpiece material, adding flexibility for slotting, profiling, and pocket milling operations. The extra-long overall length makes it practical for setups where standard-length tools cannot reach the work zone. Licensed machinists and CNC operators are the primary users of this tool class.

Key Features

• Solid micrograin carbide construction for superior edge retention and rigidity
• 40-degree helix angle promotes efficient chip evacuation and reduced cutting forces
• Centercutting design allows direct plunge entry into workpiece material
• 2-flute configuration provides ample chip clearance for slotting and full-width cuts
• Right-hand cut and right-hand spiral flute geometry, standard for conventional milling setups
• Extra-long 4 inch overall length extends reach for deep pockets and tall workpiece setups
• Uncoated finish suitable for applications requiring re-sharpening or coating-sensitive materials

Compatibility

Designed as an OEM-style replacement or standard tooling option for milling machines and CNC machining centers accepting a 3/8 inch straight shank end mill with right-hand cut orientation.

Installation Notes

This tool is installed by a machinist or CNC operator using a compatible end mill holder, collet chuck, or set-screw style toolholder rated for the 0.375 inch shank diameter. Verify runout and tool projection before beginning a cut, as excessive runout accelerates wear and reduces surface finish quality. Always ensure the spindle and machine are fully stopped before changing tooling. Shank diameter tolerance is -0.0001 to -0.0004 inches, so confirm holder bore condition for proper grip.