Hertel 2558492 Chucking Reamer 0.4980 in Hss 6 Flute

Product Description

The HERTEL 2558492 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, this reamer delivers accurate final sizing of drilled or bored holes. It measures 0.4980 inches in diameter with an 8-inch overall length and a 2-inch flute length. The straight-cylindrical shank allows secure clamping in standard drill chucks or collet holders. Six right-hand cutting flutes provide smooth, consistent material removal during finishing passes. This tool is suited for machine shop, production, and maintenance environments where tight bore tolerances are required.

The 2558492 is used in drilling and boring operations where a final reamed hole diameter of 0.4980 inches is specified. Its straight flute geometry makes it well-suited for reaming through holes in softer ferrous and non-ferrous materials. The dowel-pin reamer designation indicates suitability for precision dowel pin hole preparation, a common task in fixture building, die work, and mechanical assembly. Machinists and tool-and-die workers typically deploy this reamer on drill presses, CNC machining centers, or manual mills at controlled feed and speed rates.

Key Features

• 0.4980 inch finished bore diameter within the 0.4000 to 0.4999 inch reamer diameter range
• High-speed steel (HSS) construction for durability across a range of workpiece materials
• Bright, uncoated finish suitable for general-purpose reaming without specialized lubrication requirements
• Six straight flutes with right-hand cutting direction for smooth, accurate hole finishing
• Straight-cylindrical shank compatible with standard drill chucks and collet holders
• Designated as a dowel pin reamer for precision-fit hole preparation in fixtures and assemblies

Compatibility

Designed as an OEM-style chucking reamer for use in standard drill press, mill, or machining center setups accepting a straight-cylindrical shank tool with a 0.4980 inch cutting diameter.

Installation Notes

This reamer should be installed by a qualified machinist and secured firmly in a drill chuck or collet before use. Always power down and lock out the machine before changing tooling. Use appropriate cutting fluid or coolant to extend tool life and improve hole finish quality. Do not use this reamer to remove excessive stock — pre-drill or bore the hole to within a few thousandths of final diameter before reaming.