Hertel 2291763 Chucking Reamer Wire 76 0.0200 in Hss

Product Description

The HERTEL 2291763 is a straight-flute chucking reamer designed for precision hole finishing in metalworking applications. Ground from high-speed steel (HSS) with a bright, uncoated finish, this reamer holds a wire gauge No. 76 diameter of 0.0200 inches. The straight-cylindrical shank allows direct mounting in a drill press chuck, CNC lathe, or similar machine spindle. With 2 right-hand flutes and a 0.3750-inch flute length, it is suited for removing small amounts of material to bring a bored or drilled hole to a close-tolerance finished diameter. Overall length is 1.0000 inches. Machinists and tool-and-die professionals use this style of reamer for producing accurate, repeatable hole geometry in light-duty precision work.

This reamer is appropriate for use on ferrous and non-ferrous metals in production and job-shop environments. Its compact size and wire-gauge diameter make it well suited for instrument-quality work, small mold and die components, and other applications requiring precise hole sizing in the sub-0.05-inch diameter range. The right-hand cutting direction is standard for conventional machine-driven reaming operations. It is sold as a single piece, making it practical for spot replacement in a precision tooling set.

Key Features

• Wire gauge No. 76 diameter — 0.0200 inches for sub-0.05-inch hole finishing
• High-speed steel (HSS) construction for durability in ferrous and non-ferrous materials
• Straight-flute geometry suited for through-hole reaming in machine setups
• Straight-cylindrical shank for direct chuck mounting without adapters
• Right-hand cutting direction for use with standard machine spindle rotation
• Bright, uncoated finish — no coating degradation risk in close-tolerance applications

Compatibility

Designed as a standard chucking reamer for use in drill presses, CNC lathes, and milling machines equipped with a chuck or collet capable of holding a straight-cylindrical shank at this diameter range.

Installation Notes

This reamer is installed and used by machinists in a machine spindle — not by hand. Power down and lock out the machine before changing tooling. Secure the straight-cylindrical shank firmly in a properly sized collet or drill chuck before operation. Use appropriate cutting fluid for the workpiece material to extend tool life and maintain hole quality.