Hertel 59904474 Chucking Reamer 0.125 in Solid Carbide

Product Description

The HERTEL 59904474 is a solid carbide chucking reamer designed for precision hole finishing in machine shop and manufacturing environments. With a nominal diameter of 0.125 inches (1/8 inches), a 4-flute spiral configuration, and a right-hand cutting direction, this reamer delivers accurate, smooth bores in a wide range of materials. The straight cylindrical shank allows direct mounting in standard chucks and collets. Solid carbide construction provides rigidity and wear resistance well suited to tight-tolerance work in both production and toolroom settings. Machinists and CNC operators are the primary users of this tool.

This reamer is intended for finish reaming of small-diameter holes requiring close dimensional tolerances. It is well suited for use in machining centers, CNC lathes, drill presses, and manual milling machines. The 5/8-inch flute length accommodates typical depth requirements for small-bore applications in metals, composites, and other machinable materials. The spiral flute geometry helps clear chips effectively and produces a cleaner bore finish compared to straight-flute designs, making it a practical choice in production runs and precision repair work.

Key Features

• Solid carbide construction for high rigidity and extended tool life
• 4-flute spiral configuration promotes efficient chip evacuation and improved bore finish
• Right-hand cutting direction with right-hand spiral flute geometry
• Straight cylindrical shank for compatibility with standard chucks and collets
• Not an over/under size reamer — cuts to nominal 0.125 inch diameter

Compatibility

Designed as a standard chucking reamer for use in any machine tool equipped with a chuck or collet capable of accepting a straight cylindrical shank in the 0.125 inch diameter range.

Installation Notes

Installation and use should be performed by a qualified machinist following standard toolroom safety practices. Ensure the machine spindle is fully stopped and locked out before inserting or removing the reamer from the holder. Verify chuck or collet runout is within acceptable limits before use, as excessive runout will degrade hole accuracy and shorten tool life. Use appropriate cutting fluid for the workpiece material to reduce heat and extend reamer life.