Hertel 2291631 Chucking Reamer Wire 63 0.0370 in Hss

Product Description

The HERTEL 2291631 is a wire-size chucking reamer designed to bring bored or drilled holes to a precise finished diameter. Built from high-speed steel (HSS) with a bright, uncoated finish, this reamer is suited for general-purpose ferrous and non-ferrous hole finishing in machine shop and production environments. It carries a wire gauge designation of No. 63, corresponding to a decimal diameter of 0.0370 inches. The straight-cylindrical shank mounts directly in a drill chuck, collet, or machine spindle, and the straight flute geometry provides clean, consistent cutting action on through-holes. Overall length is 1.5 inches with a flute length of 0.5 inches.

This reamer is intended for use in light machining applications where precise hole sizing at small diameters is required. It is well suited for toolroom work, instrument manufacturing, and small-part production where wire-gauge hole tolerances are standard. The right-hand cutting direction is compatible with conventional CNC machining centers, knee mills, drill presses, and similar spindle equipment. Machinists and tool-and-die technicians are the primary users of this style of chucking reamer.

Key Features

• Wire size No. 63 with a decimal diameter of 0.0370 inches for precise small-bore finishing
• High-speed steel (HSS) construction provides durability across a range of work materials
• Bright, uncoated finish suitable for general-purpose cutting applications
• Straight flute geometry for smooth, consistent material removal in through-holes
• Straight-cylindrical shank for direct mounting in chucks, collets, or spindle tooling
• Right-hand cutting direction compatible with standard machine spindle rotation

Compatibility

Designed as an OEM-style chucking reamer for use in drill presses, CNC machining centers, knee mills, and similar spindle equipment that accept straight-cylindrical shank tooling at small wire-gauge diameters.

Installation Notes

This reamer is installed and serviced by machinists or tool-and-die technicians. Power down and de-energize the machine spindle completely before changing tooling. Secure the straight-cylindrical shank firmly in a properly sized chuck or collet to prevent runout, which is especially critical at small diameters. Use appropriate cutting fluid for the work material to extend tool life and maintain hole-size accuracy.