Hertel 91192559 Roughing End Mill 5/16 in 4 Flute Cobalt

Product Description

The HERTEL 91192559 is a single-end roughing end mill designed to remove material quickly in milling applications. Manufactured from M42 cobalt high-speed steel with a bright, uncoated finish, this end mill delivers heat resistance and edge retention well suited to ferrous and harder workpiece materials. The tool features a 5/16 inch (0.3125 inch) mill diameter, four flutes, and a right-hand cutting and flute direction. With a 3/8 inch shank diameter, 1.375 inch length of cut, and 3.375 inch overall length, it fits standard milling machine and machining center setups. This is a non-centercutting tool intended for peripheral and slot roughing passes.

This end mill is suited to roughing operations in job shops, toolrooms, and production machining environments. Its cobalt construction makes it a practical choice for cutting alloy steels, stainless steels, and other materials that generate high cutting temperatures. The single-end configuration and right-hand cutting direction align with standard vertical and horizontal milling machine setups. Machinists and tool-and-die professionals use this style of end mill to achieve aggressive stock removal rates before a finishing pass.

Key Features

• M42 cobalt high-speed steel construction for elevated heat and wear resistance
• 5/16 inch mill diameter with 4 flutes for effective chip evacuation during roughing
• 1.375 inch length of cut accommodates moderate-depth roughing passes
• 3/8 inch shank diameter fits standard collets and end mill holders
• Right-hand cutting and flute direction, standard for conventional milling setups
• Bright, uncoated finish suitable for use with cutting fluids or dry in appropriate materials

Compatibility

Designed as an OEM-style roughing end mill for use in standard milling machines and machining centers accepting a 3/8 inch shank end mill holder or collet.

Installation Notes

This end mill should be installed by a qualified machinist or toolroom professional. Secure the shank fully in a clean, properly sized collet or end mill holder and torque to the machine manufacturer's specification before operation. Inspect the cutting edges for chips or damage before each use. This is a non-centercutting tool and should not be plunged axially into the workpiece.