Hertel 79890604 Chucking Reamer Wire 23 0.1540 in Carbide

Product Description

The HERTEL 79890604 is a solid carbide chucking reamer in wire size 23, ground to a diameter of 0.1540 inches with a tight tolerance of 0.0000 to 0.0002 inches. It features a straight flute geometry and a straight cylindrical shank for use in standard drill chucks and collet holders. At 2.5 inches overall length with a 0.75-inch flute length, this compact reamer is suited for finishing and sizing small-diameter holes in hardened and difficult-to-machine materials. The bright, uncoated solid carbide construction provides rigidity and edge retention where high-speed steel tools fall short. Machinists and toolroom technicians use this reamer for precision hole sizing in production and maintenance environments.

This chucking reamer is designed for precision finishing of through and blind holes in metalworking applications. Its 4-flute, right-hand cut configuration delivers consistent surface finish and accurate diameter control at wire size 23, covering the 0.1500 to 0.1999 inch diameter range. It is well suited for use in CNC machining centers, manual mills, and drill presses where close-tolerance hole sizing is required. Typical applications include instrument components, fixture details, and other work demanding tight hole tolerances in steel, cast iron, aluminum, and similar materials.

Key Features

• Solid carbide construction for rigidity and extended tool life in hard and abrasive materials
• Reamer diameter of 0.1540 inches, wire size 23, with tolerance of 0.0000 to 0.0002 inches
• 4-flute straight flute geometry for consistent chip evacuation and smooth bore finish
• Right-hand cut direction for standard machine spindle use
• Bright uncoated finish suitable for a wide range of metalworking materials
• Straight cylindrical shank compatible with standard drill chucks and collet systems

Compatibility

Designed as a standard chucking reamer for use in any machine spindle, drill chuck, or collet holder accepting a straight cylindrical shank at wire size 23 diameter.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. Secure the straight shank firmly in a drill chuck or collet holder before operation and verify runout before cutting. Power down the machine and lock out energy sources before changing or adjusting reamers. Use appropriate cutting fluid for the workpiece material to promote tool life and surface finish quality.