Hertel 02499218 Roughing End Mill 1/2 in 4 Flute Cobalt

Product Description

The HERTEL 02499218 is a single-end roughing end mill designed for aggressive material removal in milling operations. Built from M42 cobalt high-speed steel, it carries a TiCN coating that extends tool life in abrasive and harder workpiece materials. The 1/2 inch diameter cutting geometry features 4 flutes with a coarse pitch configuration, which breaks chips into smaller segments and reduces cutting forces during heavy passes. This style of rougher is a standard tool in any machinist or toolroom setting where rapid stock removal is required before a finishing pass.

This end mill is suited for use in vertical machining centers, knee mills, and manual or CNC milling equipment. The coarse pitch fluting makes it particularly effective on steels, stainless steels, and other ferrous materials where chip packing is a concern in deep cuts. Center-cutting capability allows plunge entry directly into the workpiece. Right-hand cut and right-hand flute direction are standard for conventional milling machine spindles. The regular length profile fits most standard tool holders and collet chucks without requiring extended-reach accessories.

Key Features

• M42 cobalt HSS construction provides heat resistance and toughness for demanding milling applications
• TiCN coating increases surface hardness and reduces friction at the cutting edge
• Coarse pitch, 4-flute roughing geometry breaks chips efficiently and lowers cutting forces
• Center-cutting design allows direct plunge milling without a pre-drilled entry hole
• Right-hand cut and right-hand helix match standard milling machine spindle rotation
• Single-end configuration with a regular-length body fits standard collet and end mill holders

Compatibility

Designed as an OEM-style replacement or direct tooling selection for standard 1/2 inch end mill holders, collet chucks, and Weldon-style holders used on conventional and CNC milling machines.

Installation Notes

Installation should be performed by a qualified machinist familiar with tooling setup and machine operation. Ensure the spindle is fully stopped and the machine is powered down before changing tooling. Seat the shank fully into the holder to the recommended minimum engagement depth and torque set screws to holder manufacturer specifications. Inspect the cutting edges for chips or damage before each use, and verify spindle speed and feed rate settings are appropriate for the workpiece material before engaging the cut.