Hertel 84213883 Roughing End Mill 1 in 5 Flute Cobalt

Product Description

The HERTEL 84213883 is a single-end roughing end mill designed for aggressive material removal in milling operations. Built from M42 cobalt high-speed steel with a bright, uncoated finish, this tool handles tough ferrous and non-ferrous materials where heat resistance and edge toughness are required. The 1-inch cutting diameter pairs with a 3/4-inch shank diameter, a 2-inch length of cut, and a 4.25-inch overall length. Its 5-flute geometry supports higher feed rates than standard 4-flute roughers while maintaining chip clearance. Right-hand cutting and right-hand flute direction are standard. This tool is installed by machinists and tool-and-die professionals on vertical and horizontal milling machines and machining centers.

This roughing end mill is suited for roughing passes on steel, stainless, and high-temperature alloys in job shop and production environments. The cobalt M42 substrate tolerates elevated cutting temperatures better than standard M2 HSS, making it appropriate for harder workpiece materials or situations where coolant is limited. The single-end configuration is standard for general-purpose roughing setups. It is not center-cutting, so plunge milling is not applicable for this tool.

Key Features

• M42 cobalt high-speed steel substrate for improved heat and wear resistance
• 5-flute design supports higher feed rates compared to 4-flute roughing end mills
• Bright, uncoated finish suitable for use with or without coolant
• Right-hand cut and right-hand helix, standard for conventional milling setups
• 3/4-inch shank diameter fits standard ER and side-lock tool holders
• Not center-cutting — designed for peripheral and slot roughing, not plunge entry

Compatibility

Designed as an OEM-style roughing end mill for use in standard 3/4-inch bore milling tool holders on vertical mills, horizontal mills, and CNC machining centers.

Installation Notes

Installation is performed by qualified machinists. Secure the 3/4-inch shank in a properly torqued collet chuck, end mill holder, or side-lock holder before use. Inspect the cutting edges and shank for chips or runout before seating in the spindle. Always power down and lock out the machine before changing tooling per applicable machine safety procedures.