Hertel 2291375 Chucking Reamer No. 37 0.1040 in Hss

Product Description

The HERTEL 2291375 is a straight-flute chucking reamer manufactured from high-speed steel (HSS), designed to finish-ream holes to a precise diameter of 0.1040 inches (No. 37 wire size). Chucking reamers are machine-driven tools used in drill presses, lathes, and CNC machining centers to bring a drilled or bored hole to final dimensional tolerance with a smooth, consistent surface finish. At 3.5 inches overall length with a 0.875-inch flute length and a straight-cylindrical shank, this reamer is well-suited for short, precise reaming operations in metal and similar materials where tight hole tolerance is required.

This reamer is intended for use in machine-tool applications where a drill press, lathe, or similar equipment drives the tool. The straight-cylindrical shank mounts directly into a drill chuck or collet holder. It is appropriate for production and maintenance machining environments where holes in the No. 37 wire-gauge diameter range require finishing to close tolerance. Machinists, tool-and-die makers, and maintenance technicians working with ferrous and non-ferrous metals will find this a standard fit for small-diameter reaming tasks.

Key Features

• 0.1040 inch diameter matches No. 37 wire-gauge size for precise hole finishing
• HSS construction provides good wear resistance across a range of workpiece materials
• Straight flute geometry suits most machine-reaming applications in non-interrupted cuts
• Straight-cylindrical shank fits standard drill chucks and collet holders without modification
• Compact 3.5-inch overall length allows use in confined setups or short-travel machines

Compatibility

Designed as a standard machine chucking reamer for use in drill presses, lathes, and CNC machining centers equipped with a chuck or collet capable of holding a straight-cylindrical shank in the No. 37 wire-size diameter range.

Installation Notes

This tool is installed and operated by machinists or trained maintenance technicians using machine tools such as a drill press or lathe. Power down and secure the machine before mounting or removing the reamer from the chuck or collet. Use appropriate cutting fluid for the workpiece material to extend tool life and achieve the intended surface finish. Do not use this tool for freehand drilling or in a handheld power drill, as chucking reamers require machine-controlled feed rates to hold dimensional accuracy.