Hertel 59904326 Chucking Reamer 9/64 in Spiral Flute Carbide

Product Description

The HERTEL 59904326 is a solid carbide chucking reamer designed for precision hole finishing in machining applications. With a 9/64 inch (0.1406 inch decimal) diameter, this reamer delivers tight-tolerance bore sizing in a compact 2-1/2 inch overall length. The four-flute spiral configuration with right-hand cut and right-hand spiral promotes smooth chip evacuation and consistent surface finish. Solid carbide construction provides rigidity and wear resistance suited to ferrous and non-ferrous workpiece materials. This tool is installed in a standard drill chuck or collet chuck via its straight cylindrical shank.

This chucking reamer is used in CNC machining centers, drill presses, and manual lathes where accurate hole sizing is required after drilling. The 3/4 inch flute length accommodates shallow-to-moderate depth reaming passes in production and job-shop environments. It is typically selected by machinists and toolroom technicians working to close hole-diameter tolerances in metal components. The straight shank provides a secure grip in ER collets, Jacobs chucks, and similar standard toolholding systems.

Key Features

• Solid carbide construction for rigidity and extended tool life
• Spiral flute geometry promotes chip flow and reduces chatter
• Right-hand cut with right-hand spiral for conventional reaming operations
• Four flutes for consistent surface finish and dimensional accuracy
• Straight cylindrical shank compatible with standard chucks and collets
• Compact 2-1/2 inch overall length suited to tight workpiece clearances

Compatibility

Designed as a standard chucking reamer for use in any toolholding system accepting a straight cylindrical shank of 9/64 inch diameter, including ER collet chucks, Jacobs-style drill chucks, and similar workholding commonly found on CNC and manual machining equipment.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. Ensure the machine spindle is fully stopped and the toolholder is clean and free of debris before inserting or removing the reamer. Secure the straight shank firmly in the chuck or collet to the toolholder manufacturer's specified clamping procedure to prevent slippage. Apply appropriate cutting fluid for the workpiece material to maximize tool life and surface finish quality.