Hertel 72034887 Chucking Reamer 0.4880 in 6 Flute Hss

Product Description

The HERTEL 72034887 is a straight-flute chucking reamer designed for precision hole finishing in metalworking applications. Built from high-speed steel (HSS) with a bright, uncoated finish, it delivers consistent diameter accuracy across a range of materials. The reamer measures 0.4880 inches in diameter with an overall length of 8 inches and a 2-inch flute length. A straight-cylindrical shank seats securely in drill chucks or collet holders. Right-hand cutting direction and 6 straight flutes produce a smooth, accurate bore suitable for close-tolerance work in machine shop and production environments.

This chucking reamer is suited for machine reaming operations on drill presses, lathes, and milling machines. It is used to bring pre-drilled or bored holes to a precise finished diameter, improving surface finish and dimensional accuracy. Typical applications include finishing holes for dowel pins, bushings, and close-fit shaft assemblies in job shop, toolroom, and light production settings. It is not configured as a dowel pin reamer or an over/under size reamer, making it appropriate for standard nominal-diameter finishing work.

Key Features

• 0.4880 inch finished diameter for precise hole sizing in the 0.4000 to 0.4999 inch range
• 6 straight flutes for smooth cutting action and consistent chip evacuation
• High-speed steel (HSS) construction provides good wear resistance across common workpiece materials
• Bright, uncoated finish — no added coating to affect dimensional tolerance
• Straight-cylindrical shank compatible with standard drill chucks and collet systems
• Right-hand cutting direction for conventional machine reaming setups

Compatibility

Designed as a standard chucking reamer for use in any machine tool equipped with a drill chuck or straight-shank collet holder accepting a 0.4880 inch shank diameter.

Installation Notes

Machine reaming is performed by machinists and toolroom professionals using drill presses, lathes, or milling machines. Always ensure the workpiece is securely clamped and the spindle is properly aligned before reaming to avoid bell-mouthing or oversized holes. Power down the machine and de-energize controls before changing or setting the reamer in the holder. Use appropriate cutting fluid for the workpiece material to extend tool life and improve surface finish.