Hertel 72309032 Chucking Reamer Letter C Cobalt Steel

Product Description

The HERTEL 72309032 is a straight-flute chucking reamer designed to finish-size bored or drilled holes to a precise Letter C diameter of 0.2420 inches. Built from cobalt steel, this reamer handles tough work materials that generate heat at the cutting edge, offering better wear resistance than standard high-speed steel. The bright, uncoated finish makes it easy to inspect for wear. With a 6-inch overall length and a 1-1/2-inch flute length, it provides the rigidity and reach needed for accurate reaming in machine shop and maintenance applications. Installation is performed by machinists and toolroom technicians using a lathe, drill press, or CNC machining center.

This reamer is suited for precision hole finishing in metalworking environments where tight tolerances are required. The straight-cylindrical shank mounts directly into standard chucks and collets without additional adapters. Right-hand cutting direction means it runs with conventional spindle rotation. Typical applications include sizing holes in ferrous and non-ferrous metals in both production and job-shop settings. It is sold individually with a minimum order quantity of one unit.

Key Features

• Letter C diameter — 0.2420 inches finished hole size
• Cobalt steel construction for improved heat and wear resistance over standard HSS
• Straight-flute geometry for general-purpose hole finishing
• Straight-cylindrical shank fits standard chucks and collets directly
• Right-hand cutting direction compatible with conventional spindle rotation
• Bright, uncoated finish for easy visual inspection of cutting edges

Compatibility

Designed as a general-purpose chucking reamer for use in lathes, drill presses, and machining centers equipped with standard chuck or collet toolholding systems accepting a straight-cylindrical shank in the 0.2420-inch diameter range.

Installation Notes

Chucking reamers are installed and operated by machinists and toolroom technicians. Always power down and lock out the machine before changing tooling. Ensure the shank is fully seated and securely clamped in the chuck or collet before running the spindle. Use appropriate cutting fluid for the workpiece material to extend tool life and achieve the intended surface finish; never run a reamer dry on hard ferrous materials.