Accupro 12181761 Square End Mill 0.5in 2-flute Carbide

Product Description

The ACCUPRO 12181761 is a solid carbide square end mill designed for precision milling operations in metal, composites, and hard plastics. With a 0.5 inch cutting diameter, a 3 inch length of cut, and a 6 inch overall length, this is an extra-long configuration suited for deep-reach applications where a standard-length tool cannot access the workpart. The 40-degree helix angle promotes aggressive chip evacuation and smooth cutting action. Micrograin carbide substrate provides the edge retention and rigidity needed when running at elevated feeds and speeds on CNC machining centers and manual mills.

This end mill is well suited for slotting, profiling, and peripheral milling in production and job-shop environments. The extra-long reach makes it appropriate for mold work, deep-pocket roughing, and any application requiring tool projection beyond standard gauge lengths. Its centercutting geometry allows direct plunge entry without a pre-drilled start hole, which simplifies programming on CNC mills. The 0.5 inch shank diameter fits standard ER and end mill holders across common spindle tapers.

Key Features

• Solid micrograin carbide construction for superior edge retention and wear resistance
• 40-degree right-hand spiral flute promotes efficient chip evacuation and reduced cutting forces
• Centercutting design allows direct plunge milling without a pilot hole
• Extra-long 6 inch OAL with 3 inch length of cut for deep-reach applications
• Right-hand cut and right-hand flute configuration for standard spindle rotation
• Mill diameter tolerance of +0.000 / -0.002 inches for consistent fit in close-tolerance work

Compatibility

Designed as a general-purpose square end mill for use in standard 0.5 inch end mill holders, collet chucks, and shrink-fit tooling on CNC machining centers and manual knee mills.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician. Ensure the spindle is fully stopped and the machine is in an e-stop or locked-out state before changing tooling. Seat the shank to the minimum recommended insertion depth per the toolholder manufacturer guidelines to avoid excessive overhang and vibration. Verify runout at the tool tip with a dial indicator before initiating a cut, particularly given the extra-long projection of this tool.