Accupro 12182900 Square End Mill 0.3937 in 4 Flute Carbide

Product Description

The ACCUPRO 12182900 is a solid carbide square end mill designed for precision milling operations in metal, composites, and engineering plastics. This centercutting tool features a 0.3937 inch (10 mm) mill diameter, four spiral flutes at a 40-degree helix angle, and a right-hand cut with right-hand flute orientation. The stub-length configuration provides added rigidity in tight-clearance setups. Manufactured from micrograin carbide, it delivers consistent edge integrity at higher feed rates and spindle speeds. Intended for CNC machinists and tool-and-die professionals requiring repeatable results in finishing and light roughing passes.

This end mill is suited for use in vertical machining centers, CNC mills, and manual knee mills capable of holding a 10 mm or 0.3937 inch shank. Its stub length and 0.5512 inch length of cut make it effective for slotting, profiling, and side milling in applications where tool deflection and vibration must be minimized. The uncoated finish makes it a practical choice for non-ferrous materials and applications where re-grinding is anticipated. The 2-3/4 inch overall length fits standard toolholders and collet chucks without extended-reach considerations.

Key Features

• 0.3937 inch (10 mm) mill diameter with micrograin solid carbide construction for edge strength and wear resistance
• 40-degree helix angle spiral flute geometry promotes efficient chip evacuation and smooth cutting action
• Centercutting design allows plunge milling and ramp entry without a pre-drilled pilot hole
• Stub-length body reduces deflection in short-reach milling applications
• Right-hand cut and right-hand flute orientation for standard spindle operation
• Uncoated surface finish suitable for non-ferrous metals and applications requiring regrinding

Compatibility

Designed as a direct-fit replacement or standard tooling selection for CNC machining centers and manual mills accepting a 10 mm shank diameter in ER, shrink-fit, or Weldon-style toolholders. No specific OEM model compatibility was stated in the product data.

Installation Notes

Installation should be performed by a qualified machinist following shop safety procedures. Ensure the spindle is fully stopped and the machine is in a locked-out state before inserting or removing the tool. Verify toolholder runout is within acceptable tolerance before operation, as excessive runout will accelerate edge wear on carbide tooling. Do not exceed the rated depth of cut or feed rate for the workpiece material and machine rigidity.