Hertel 91196915 Roughing End Mill 1-1/2 in 6 Flute Cobalt

Product Description

The HERTEL 91196915 is a single-end roughing end mill designed for aggressive material removal in milling applications. Built from M42 cobalt high-speed steel with a Titanium Nitride (TiN) coating, it delivers extended tool life and heat resistance under demanding cutting conditions. The cutter measures 1.5 inches in diameter with a 1.25-inch shank diameter and a 2-inch length of cut. Six fine-pitch flutes break chips efficiently and reduce cutting forces, making this tool well-suited for roughing passes on ferrous and tough alloy materials. Machinists and tool-and-die professionals install this type of end mill in vertical and horizontal milling machines.

This roughing end mill is intended for use in metal-cutting environments where stock removal rate is the priority before a finishing pass. The fine-pitch, 6-flute configuration produces smaller chips and smoother surface finishes relative to coarse-pitch roughers, making it appropriate for applications where surface integrity still matters during roughing. The right-hand cut and right-hand flute direction are standard for conventional milling machine spindles. The 4.5-inch overall length provides adequate reach for most standard workholding setups without excessive overhang.

Key Features

• M42 cobalt HSS construction resists heat and wear in hard and abrasive materials
• Titanium Nitride (TiN) coating reduces friction and extends cutting edge life
• 6-flute fine-pitch geometry breaks chips efficiently for high material removal rates
• 1.25-inch shank diameter provides rigid tool holding in standard end mill holders
• Right-hand cut and right-hand flute direction for use in standard milling spindles
• Non-centercutting design — not intended for plunge entry

Compatibility

Designed as an OEM-style cutting tool for use in standard milling machine end mill holders or collet chucks accepting a 1.25-inch shank diameter.

Installation Notes

Installation is performed by a machinist or toolroom professional. Ensure the machine spindle is fully stopped and locked out before changing tooling. Seat the shank fully in the holder and torque set screws or collet nuts per the tool holder specification. Because this is a non-centercutting end mill, do not use it for direct plunge cuts — ramp or helical entry strategies are required.