Hertel 2291748 Chucking Reamer Wire Size 74 Hss

Product Description

The HERTEL 2291748 is a straight-flute chucking reamer designed for precision hole finishing in metal and other materials. Built from high-speed steel (HSS) with a bright, uncoated finish, it delivers accurate sizing in drilling and boring operations. The reamer features a wire gauge size 74 cutting diameter of 0.0225 inches, a 3-flute straight configuration, and right-hand cutting direction. Its straight-cylindrical shank allows direct mounting in drill chucks, collets, or machine spindles. Machinists and tool-and-die professionals use this reamer to bring drilled or bored holes to precise final diameter with a clean, consistent finish.

This reamer is suited for light-duty reaming operations in machine shop, toolroom, and production environments. Its compact 1-inch overall length and 0.5-inch flute length make it appropriate for shallow-hole finishing tasks where a short, rigid tool is preferred. The wire size 74 designation targets very small-diameter holes in the 0 to 0.0499-inch decimal range, making it a common choice for instrument work, small fixture components, and precision assembly applications.

Key Features

• Wire size 74 cutting diameter at 0.0225 inches for precision small-hole finishing
• High-speed steel (HSS) construction for durability across a range of workpiece materials
• 3-flute straight configuration provides consistent chip clearance and smooth bore finish
• Right-hand cutting direction compatible with standard machine spindle rotation
• Bright, uncoated finish maintains close dimensional tolerances out of the box
• Straight-cylindrical shank for straightforward chuck or collet mounting

Compatibility

Designed as an OEM-style chucking reamer for use in standard drill chucks, collets, and machine spindles accepting a straight-cylindrical shank of the corresponding diameter.

Installation Notes

Installation and use of chucking reamers is performed by machinists or tool-and-die professionals on drilling machines, lathes, or machining centers. Before mounting, ensure the machine spindle and chuck are clean and free of chips. Secure the straight-cylindrical shank firmly in the chuck or collet before operation. Always use appropriate cutting fluid for the workpiece material and do not exceed recommended feed and speed parameters for HSS tooling.