Hertel 79891347 Chucking Reamer 9 Mm Solid Carbide

Product Description

The HERTEL 79891347 is a solid carbide chucking reamer designed for precision hole finishing in metalworking applications. With a 9 mm (0.3543 inch) diameter and a tight tolerance of 0.0000 to 0.0003 inches, this reamer delivers accurate, repeatable bore sizing in production and job-shop environments. The straight flute geometry and right-hand cutting direction suit it for use in CNC machining centers, lathes, and drill presses. Solid carbide construction provides the rigidity and wear resistance required when reaming hardened materials or maintaining close tolerances across high-volume runs. Overall length is 3.5 inches with a 1.25-inch flute length.

This chucking reamer is suited for precision reaming operations in ferrous and non-ferrous metals where tight bore tolerances are required. The straight cylindrical shank allows direct mounting in standard collet chucks, drill chucks, or floating reamer holders. Its bright, uncoated finish makes it a practical choice for general-purpose reaming where coolant or cutting fluid is applied at the cutting zone. Machinists, tool-and-die makers, and CNC operators typically select this style of reamer for finish passes following drilling or boring operations.

Key Features

• 9 mm (0.3543 inch) diameter with a reaming tolerance of 0.0000 to 0.0003 inches for precise bore sizing
• Solid carbide construction for superior rigidity and wear resistance
• 6-flute straight geometry for smooth cutting action and consistent finish
• Straight cylindrical shank for compatibility with standard collet and drill chuck toolholding
• Right-hand cutting direction for conventional spindle rotation
• Bright, uncoated finish suitable for use with applied cutting fluids

Compatibility

Designed as a standard chucking reamer for use in CNC machining centers, manual lathes, and drill presses equipped with collet chucks or floating reamer holders that accept a straight cylindrical shank.

Installation Notes

A licensed machinist or trained CNC operator should install and run this tool following established shop safety procedures. Secure the shank fully within the toolholder and verify runout before cutting. Power down the spindle and confirm zero motion before changing or inspecting the reamer. Always apply appropriate cutting fluid or coolant to extend tool life and maintain bore finish quality.