Hertel 84213933 Roughing End Mill 2 in 8 Flute Cobalt

Product Description

The HERTEL 84213933 is a single-end roughing end mill designed for aggressive material removal in milling operations. Manufactured from M42 cobalt high-speed steel, it delivers heat resistance and edge retention when cutting ferrous metals, stainless, and tough alloys. The mill measures 2 inches in diameter with an 8-flute, fine-pitch geometry that produces a smoother surface finish than coarse-pitch roughers while maintaining high chip-load capacity. Overall length is 9.75 inches with a 6-inch length of cut. The bright, uncoated finish makes tool wear easy to monitor during service. This tool is installed by machinists and tool-and-die professionals in vertical or horizontal milling machines.

The 84213933 is suited for roughing passes in production and job-shop environments where a large-diameter end mill is required. The 2-inch shank diameter matches the cutter diameter, which is standard for heavy-duty roughing applications on knee mills, CNC machining centers, and similar equipment. Right-hand cutting and right-hand flute direction follow conventional milling orientation. The fine-pitch, 8-flute configuration is best applied at controlled feed rates to manage chip evacuation on deep cuts.

Key Features

• M42 cobalt steel construction for heat and wear resistance in tough materials
• 8-flute fine-pitch geometry balances material removal rate with surface finish quality
• 6-inch length of cut accommodates deep-pocket and long-reach milling operations
• Right-hand cut and right-hand helix for standard milling machine spindle direction
• Bright, uncoated finish allows direct visual inspection of cutting edge condition
• Single-end design with non-centercutting tip — not intended for plunge entry

Compatibility

Designed as an OEM-style roughing end mill for use in standard milling machine spindles and tool holders accepting a 2-inch straight shank.

Installation Notes

Installation is performed by qualified machinists or toolroom personnel. Secure the shank fully in a collet chuck or end mill holder rated for the shank diameter before operation. This tool is non-centercutting and must not be used for plunge milling — ramp or helical entry is required. Verify spindle speed and feed rate against published data for the workpiece material before engaging the cut.