Hertel 91197095 Roughing End Mill 1 in 5 Flute Cobalt

Product Description

The HERTEL 91197095 is a single-end roughing end mill designed for aggressive material removal in milling operations. Built from M42 cobalt high-speed steel and coated with Titanium Nitride (TiN), it handles tough ferrous and non-ferrous materials with extended tool life compared to standard HSS. The cutter measures 1 inch in diameter with a 1-inch length of cut, a 1-inch shank diameter, and a 3.5-inch overall length. Five fine-pitch flutes distribute cutting load evenly while the TiN coating reduces friction and heat buildup at the cutting edge. Right-hand cutting and right-hand flute direction are standard. This tool is centercutting, allowing plunge entry.

The 91197095 is suited for roughing passes on CNC machining centers and manual knee mills in job shop, production, and maintenance environments. It is commonly applied in roughing slots, pockets, and profiles in steel, stainless, and alloy materials where high material removal rate is the priority. The fine-pitch geometry and cobalt substrate make it well-matched for difficult-to-machine alloys. Machinists and tool-and-die professionals specify this geometry when surface finish is secondary to stock removal speed.

Key Features

• M42 cobalt substrate for increased red hardness and wear resistance over standard M2 HSS
• Titanium Nitride (TiN) coating reduces friction and extends edge life
• Five fine-pitch flutes for efficient chip evacuation during heavy roughing cuts
• Centercutting design permits direct plunge milling
• Right-hand cut and right-hand helix for compatibility with standard spindle rotation
• Single-end configuration with 1-inch diameter matched shank for rigid tool holding

Compatibility

Designed as an OEM-style replacement or direct-application roughing end mill for standard 1-inch collet chucks, end mill holders, and hydraulic or shrink-fit toolholders used on vertical and horizontal milling machines.

Installation Notes

Installation should be performed by a qualified machinist or toolroom professional. Ensure the spindle is fully stopped and the machine is in an energy-isolated state before changing tooling. Seat the shank fully into the holder to the recommended engagement depth and torque set screws or collet nuts per the toolholder manufacturer specifications. Verify runout with a dial indicator before beginning the cut, as excessive runout accelerates edge wear on roughing geometries.