Accupro 12181224 Square End Mill 0.0394 in 2 Flute Carbide

Product Description

The ACCUPRO 12181224 is a solid carbide square end mill designed for precision milling in tight-tolerance applications. With a cutting diameter of 0.0394 inches (1.00 mm) and a length of cut of 0.1575 inches (4.00 mm), this micro-sized tool is built for fine detail work in hardened and exotic materials. The micrograin carbide substrate delivers rigidity and edge retention at small diameters where high-speed steel tooling fails. A 30-degree helix angle promotes smooth chip evacuation and reduces cutting forces. This end mill is intended for use by machinists and CNC operators running precision machining centers or manual mills.

This end mill suits small-feature milling in aerospace, medical device, mold and die, and general precision machining applications. The 0.0394 inch diameter makes it appropriate for micro-slot milling, fine contouring, and detail work in both ferrous and non-ferrous materials. The uncoated finish is suited for applications where coating buildup at micro diameters would affect dimensional accuracy. The regular length profile fits standard tool holders and collet systems without requiring extended-reach setups.

Key Features

• 0.0394 inch (1.00 mm) cutting diameter for micro-precision milling operations
• Solid micrograin carbide construction for rigidity and edge retention at small diameters
• 2-flute geometry with 30-degree spiral helix for efficient chip evacuation
• Centercutting design allows plunge entry directly into workpiece material
• Right-hand cut and right-hand flute configuration for standard CNC spindle direction
• Uncoated finish maintains dimensional accuracy in sensitive micro-diameter applications

Compatibility

Designed as a direct-fit replacement or standard tooling selection for CNC machining centers and manual mills using collet or tool holder systems accepting a 0.1181 inch (3.00 mm) shank diameter.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Ensure the spindle is fully stopped and the machine is powered down before tool changes. Seat the 0.1181 inch shank fully into the collet or tool holder and torque the retention system per the machine manufacturer specification. At micro diameters, runout control is critical - verify TIR with a dial indicator before committing to a cut to avoid premature tool breakage.