Hertel 72028251 Chucking Reamer 0.2825 in Hss 6 Flute

Product Description

The HERTEL 72028251 is a straight-flute chucking reamer designed for precision hole finishing in metal working applications. Manufactured from high-speed steel (HSS) with a bright, uncoated finish, this reamer produces accurate, smooth bores to a diameter of 0.2825 inches. The straight-cylindrical shank seats securely in standard drill chucks or collet holders, and the right-hand cutting direction is compatible with conventional machine spindle rotation. At 6 inches overall length with a 1.5-inch flute length and 6 flutes, it provides consistent stock removal and a clean finished bore in production and repair environments.

This chucking reamer is suited for use in vertical machining centers, drill presses, and lathes where a finish-sized hole is required after drilling or boring. It is a standard tool for machinists, tool and die makers, and maintenance technicians working with steel, cast iron, aluminum, and similar machinable metals. The 0.2825-inch diameter fits within the 0.2500 to 0.2999-inch reamer diameter range and addresses applications requiring tight bore tolerances without a coating-induced diameter offset.

Key Features

• 0.2825-inch reamer diameter for precision bore finishing
• HSS construction provides durability across a range of machinable metals
• Bright, uncoated finish — no coating thickness to account for in final diameter
• 6 straight flutes for consistent chip evacuation and surface finish
• Right-hand cutting direction compatible with standard machine spindle rotation
• Straight-cylindrical shank for reliable chuck or collet retention

Compatibility

Designed as an OEM-style chucking reamer for use in standard drill chucks and collet systems that accept straight-cylindrical shanks in the 0.2500 to 0.2999-inch diameter range.

Installation Notes

Chucking reamers are installed by machinists and tool and die professionals in machine tool spindles. Always ensure the machine is at a full stop and the spindle is powered down before installing or removing the reamer from the chuck or collet. Use the correct cutting fluid or lubricant for the workpiece material to extend tool life and improve bore finish. Do not use a chucking reamer to remove excess stock — drill or bore to within standard reaming allowance before finishing.