Accupro 12182870 Square End Mill 0.3543 in 4 Flute Carbide

Product Description

The ACCUPRO 12182870 is a solid carbide square end mill designed for precision milling in ferrous and non-ferrous metals, hardened steels, and high-temperature alloys. It carries a 0.3543-inch (9.00 mm) mill diameter with a 0.5512-inch (14.00 mm) length of cut and a 2-3/4-inch overall length. The micrograin carbide substrate paired with an AlTiN finish gives the tool enhanced heat and wear resistance at elevated cutting speeds. The 40-degree helix angle promotes efficient chip evacuation and reduces cutting forces. This stub-length end mill is intended for use by machinists and tool-and-die professionals working in CNC machining centers and manual mills.

This end mill is suited for slotting, profiling, and side milling operations where a compact stub-length tool provides rigidity and minimizes deflection. The centercutting design allows for direct plunge entry into the workpiece. Right-hand cut and right-hand flute configuration follows standard CNC and manual milling conventions. It is applicable in job shop, production machining, and maintenance repair environments requiring tight dimensional tolerances.

Key Features

• Solid micrograin carbide construction for rigidity and tool life in demanding materials
• AlTiN finish for high-temperature and wear resistance
• 40-degree helix angle for aggressive chip evacuation and reduced cutting forces
• Centercutting design permits direct plunge milling
• Stub length reduces overhang and minimizes deflection during deep side milling
• Right-hand cut and right-hand spiral flute — compatible with standard spindle direction

Compatibility

Designed as a standard shank replacement end mill for CNC machining centers and manual milling machines accepting a 10.00 mm (0.3937-inch nominal) straight shank with ER or side-lock toolholders.

Installation Notes

Installation should be performed by a qualified machinist following shop safety procedures. Ensure the spindle is fully stopped and locked out before changing tooling. Shank diameter tolerance is -0.0001 to -0.0004 inches, so verify toolholder bore condition and cleanliness before seating. Confirm runout with a dial indicator after clamping to maintain tolerance integrity on finish cuts.