Hertel 79889069 Chucking Reamer 0.075 in Solid Carbide

Product Description

The HERTEL 79889069 is a solid carbide chucking reamer designed for precision hole finishing in metalworking and machining applications. Built with a 0.075 inch diameter and a tight reamer diameter tolerance of 0.0000 to 0.0002 inches, this tool delivers consistent, accurate bore sizing in production and job-shop environments. The straight flute geometry and right-hand cutting direction make it well suited for through-hole and blind-hole reaming in a wide range of machinable materials. Machinists and toolroom professionals are the primary installers of this type of tool.

This chucking reamer is intended for use in CNC machining centers, drill presses, and manual lathes where tight hole tolerances are required. With an overall length of 1.75 inches and a flute length of 0.5 inches, it is sized for small-diameter precision work. The straight cylindrical shank allows direct mounting in standard drill chucks or collet holders without modification. It is commonly used in aerospace, medical device, and general precision manufacturing where bore accuracy is critical.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard or abrasive materials
• 0.075 inch diameter with a tolerance of 0.0000 to 0.0002 inches for precise hole sizing
• 4-flute straight design provides stable cutting action and good chip clearance
• Bright/uncoated finish maintains sharp cutting edges for close-tolerance work
• Right-hand cutting direction compatible with standard machine spindle rotation
• Straight cylindrical shank fits standard chucks and collet systems

Compatibility

Designed as an OEM-style precision reaming tool for use in standard drill chucks and collet holders accommodating a straight cylindrical shank in the 0.075 inch diameter range.

Installation Notes

Chucking reamers of this type are installed and operated by machinists using CNC machining centers, drill presses, or lathes. Power down and lock out the machine spindle before mounting or removing the tool. Secure the shank fully in the chuck or collet to the manufacturer-recommended engagement depth before starting the cut. Use appropriate cutting fluid for the workpiece material to extend tool life and maintain bore finish quality.