Hertel 72028459 Chucking Reamer 0.2845 in Hss Straight Flute

Product Description

The HERTEL 72028459 is a high-speed steel (HSS) chucking reamer designed for precision hole finishing in metalworking operations. It features a 0.2845-inch cutting diameter, a 6-inch overall length (OAL), and a 1.5-inch straight flute length, making it well-suited for achieving tight dimensional tolerances and smooth bore finishes. The bright, uncoated HSS construction provides solid performance across a range of ferrous and non-ferrous materials. With six right-hand straight flutes and a straight-cylindrical shank, this reamer is built for use in drill presses, milling machines, lathes, and CNC machining centers. Licensed machinists and tool-and-die tradespeople are the typical installers of this type of precision cutting tool.

This chucking reamer is suited for production and maintenance machining environments where precise hole sizing is required after drilling. The straight-cylindrical shank allows it to be held in standard drill chucks or collet holders. It is appropriate for light to moderate material removal when bringing a drilled hole to final diameter. The 0.2845-inch diameter falls within the 0.2500 to 0.2999-inch range, covering common close-tolerance bore applications in general manufacturing, toolroom work, and mechanical assembly.

Key Features

• 0.2845-inch cutting diameter for precise hole finishing in the 0.25 to 0.2999-inch range
• Six straight right-hand flutes for smooth, accurate material removal
• HSS construction with bright, uncoated finish suitable for a variety of workpiece materials
• Straight-cylindrical shank compatible with standard drill chucks and collet holders
• 6-inch OAL with a 1.5-inch flute length for reach and rigidity in typical machine setups

Compatibility

Designed as a standard chucking reamer for use in drill presses, lathes, milling machines, and CNC machining centers equipped with drill chucks or collet systems accepting a straight-cylindrical shank.

Installation Notes

Installation and use of this reamer should be performed by qualified machinists familiar with cutting tool safety and machine operation. Ensure the machine spindle and workpiece are properly secured before engaging the cutting tool. Always run at the recommended cutting speed and feed rate for the workpiece material and tool diameter to avoid tool deflection or premature wear. Inspect the flutes and cutting edges for damage before each use and replace the tool if chipping or dulling is observed.