Hertel 79890158 Chucking Reamer 5/64 in Solid Carbide

Product Description

The HERTEL 79890158 is a solid carbide chucking reamer designed for precision hole finishing in machine tool applications. Built with a straight flute geometry and a straight cylindrical shank, this reamer delivers tight diameter tolerances of 0.0000 to 0.0002 inches on holes sized at 5/64 inch (0.0781 inch decimal). The solid carbide construction provides the rigidity needed for accurate, repeatable results in production environments. With a bright, uncoated finish and right-hand cutting direction, it is suited for use in CNC machining centers, manual mills, and drill presses where close-tolerance bore finishing is required.

This chucking reamer is intended for shop machinists, toolroom technicians, and precision machining professionals working on small-diameter bores in ferrous and non-ferrous materials. Its compact 1-3/4 inch overall length and 1/2 inch flute length make it well suited for shallow-hole reaming operations in tight workpiece geometries or fixture setups where a longer tool would be impractical. It ships as a single unit and is appropriate for both job shop and production floor use.

Key Features

• Solid carbide construction for rigidity and wear resistance in close-tolerance reaming
• Reamer diameter tolerance of 0.0000 to 0.0002 inches for precise bore sizing
• Straight flute design with 4 flutes for smooth chip evacuation in short-hole applications
• Right-hand cutting direction, standard for most machine tool setups
• Bright, uncoated finish suitable for a wide range of workpiece materials
• Compact overall length of 1-3/4 inches for use in confined setups

Compatibility

Designed as an OEM-style chucking reamer for use in standard machine tool chucks and collets accepting straight cylindrical shanks at 5/64 inch diameter.

Installation Notes

This reamer is installed by a machinist or toolroom technician in a machine tool chuck or collet holder. Ensure the spindle is fully stopped and the machine is powered down before changing tooling. Use appropriate cutting fluid for the workpiece material to extend tool life and maintain bore finish quality. Secure the shank fully in the chuck or collet to prevent runout, which can compromise tolerance and damage the carbide cutting edges.