Accupro 312046 Corner Radius End Mill 3/16 in 5 Flute

Product Description

The ACCUPRO 312046 is a solid carbide corner radius end mill designed for precision milling operations in ferrous and hard materials. It measures 3/16 inches in diameter with a 1/4 inch length of cut and a 2 inch overall length. The 5-flute geometry with a 38-degree helix angle promotes efficient chip evacuation and smooth surface finishes at higher feed rates. An AlCrTiN coating provides thermal resistance and extended tool life in demanding cutting environments. The variable index flute spacing reduces chatter, making this end mill well suited for finishing passes and contour work where surface quality matters. It is installed and used by machinists and CNC operators in job shop and production settings.

This end mill is suited for applications requiring extended reach with a reduced neck diameter. The 1/2 inch reach length and 0.178 inch neck diameter allow access to deeper pockets and recessed features without deflection-related issues. The corner radius end geometry — with a 0.030 inch corner radius — reduces stress concentrations at the tool corner and extends edge life compared to square end mills when machining fillets or transitional profiles. Centercutting capability supports plunge entry. Right-hand cutting and right-hand flute direction make it compatible with standard CNC machining center spindle configurations.

Key Features

• Solid micrograin carbide construction for rigidity and wear resistance
• AlCrTiN coating for high-temperature performance in ferrous materials
• 5-flute variable index design reduces harmonic vibration during cutting
• 0.030 inch corner radius protects the cutting edge and produces consistent fillets
• Extended reach with 0.178 inch neck diameter for deep-pocket access
• Centercutting design allows direct plunge entry

Compatibility

Designed as an OEM-style replacement or direct-use solid carbide corner radius end mill for standard 3/16 inch collet or end mill holder setups in CNC machining centers and manual mills.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Secure the shank fully within the tool holder to the manufacturer-recommended minimum engagement depth before use. Inspect the cutting edges and coating condition before each use — do not run a chipped or damaged end mill. Ensure spindle speed and feed rate parameters are set according to the workpiece material and cutting conditions before initiating a cut.