Hertel 72039662 Chucking Reamer 0.9660 in Hss 8 Flute

Product Description

The HERTEL 72039662 is a high-speed steel (HSS) chucking reamer designed for precision hole finishing in metalworking and machining applications. With a reamer diameter of 0.9660 inches and an overall length of 10 inches, this tool delivers accurate, repeatable sizing in through-holes and blind bores. The 8-flute, straight-flute geometry promotes smooth cutting action and clean surface finishes. Right-hand cutting direction and a straight-cylindrical shank make it compatible with standard drill chucks and collet holders. The bright, uncoated finish is suitable for general-purpose reaming in ferrous and non-ferrous materials.

This reamer is used in production and maintenance machining environments where final hole diameter must be held to close tolerances. It is appropriate for use in manual mill setups, CNC machining centers, and drill press operations. The 2-5/8-inch flute length accommodates a range of material thicknesses in typical shop workpieces. It is most commonly installed by machinists and tool-and-die professionals performing precision bore work on steel, cast iron, aluminum, and similar materials.

Key Features

• 0.9660-inch reamer diameter for precision hole sizing within the 0.7000 to 0.9999-inch diameter range
• 8 straight flutes provide smooth cutting action and consistent surface finish
• Right-hand cutting direction for standard machine spindle operation
• Straight-cylindrical shank fits standard drill chucks and collet holders
• HSS construction offers toughness and re-sharpenability for shop use
• Bright, uncoated finish suitable for general-purpose reaming without coolant dependency

Compatibility

Designed as a general-purpose chucking reamer for use in standard machine tool setups accepting a straight-cylindrical shank in the applicable diameter range.

Installation Notes

This tool is installed and operated by qualified machinists in lathe, mill, or drill press setups. Before mounting, ensure the spindle is fully powered down and the shank bore is clean and free of debris. Secure the shank firmly in a matched collet or chuck to minimize runout, which directly affects hole diameter accuracy. Use appropriate cutting fluid for the workpiece material to extend tool life and improve surface finish.