Hertel 79889820 Chucking Reamer 0.24 in Solid Carbide

Product Description

The HERTEL 79889820 is a solid carbide chucking reamer designed for precision hole finishing in metal machining applications. Built with a straight flute geometry and a straight cylindrical shank, this reamer holds a nominal diameter of 0.24 inches with a tight tolerance of 0.0000 to 0.0002 inches, making it suited for applications where bore accuracy is critical. The bright, uncoated carbide construction provides rigidity and wear resistance in demanding shop environments. With an overall length of 3 inches and a 1-inch flute length, this tool fits standard drill press and CNC machining setups where compact reach is needed.

This chucking reamer is used in machine shops, tool rooms, and production environments for finishing drilled or bored holes to close dimensional tolerances. It is appropriate for ferrous and non-ferrous metals where a precise, smooth bore finish is required. The 4-flute, right-hand cut configuration is compatible with standard rotating spindle setups. Machinists, tool and die makers, and CNC operators working with small-diameter precision holes will find this reamer a practical addition to their cutting tool inventory.

Key Features

• Solid carbide construction for rigidity and long tool life in precision machining
• Diameter tolerance of 0.0000 to 0.0002 inches for tight bore accuracy
• 4-flute straight flute geometry promotes clean, consistent hole finish
• Right-hand cut with straight cylindrical shank for standard chuck compatibility
• Bright, uncoated finish suitable for a wide range of workpiece materials
• Compact 3-inch overall length with 1-inch flute length for close-tolerance work

Compatibility

Designed as a standard chucking reamer for use in drill presses, lathes, and CNC machining centers equipped with a collet or drill chuck accepting a straight cylindrical shank at 0.24 inches nominal diameter.

Installation Notes

Installation and operation should be performed by a qualified machinist familiar with proper reamer speeds and feeds for carbide tooling. Secure the straight shank firmly in a collet or drill chuck before use, and ensure the spindle and workpiece are properly fixtured to prevent deflection. Do not use this tool as a drill to remove significant stock — reamers are finishing tools and require a pre-drilled or bored hole close to final size. Use appropriate cutting fluid for the workpiece material to extend tool life and improve surface finish.