Hertel 79890190 Chucking Reamer 9/64 in Solid Carbide

Product Description

The HERTEL 79890190 is a solid carbide chucking reamer designed for precision hole finishing in machine tool applications. With a reamer diameter of 9/64 inches (0.1406 decimal inch) and a tight tolerance of 0.0000 to 0.0002 inches, this tool delivers consistent, accurate bores in a single pass. The 4-flute, straight-flute geometry and right-hand cutting direction provide smooth chip evacuation and stable cutting action. Its bright, uncoated finish suits a wide range of workpiece materials. Machinists and tool and die professionals rely on this style of reamer for production and repair work where hole size accuracy is critical.

This chucking reamer is suited for use in CNC machining centers, manual mills, and drill presses where a straight-shank, machine-held tool is required. With an overall length of 2.5 inches and a flute length of 0.75 inches, the 79890190 is sized for shallow to moderate-depth reaming operations in small-bore applications. It is sold individually and is appropriate for job shops, maintenance operations, and production environments that require reliable dimensional control in small-diameter holes.

Key Features

• Solid carbide construction for hardness, wear resistance, and dimensional stability
• 4 straight flutes with right-hand cut for smooth material removal and consistent finish
• Diameter tolerance of 0.0000 to 0.0002 inches for precision hole sizing
• Bright, uncoated finish compatible with a broad range of workpiece materials
• Straight-cylindrical shank for secure chuck or collet holding
• Compact 2.5-inch overall length suited for small-bore, shallow-depth applications

Compatibility

Designed as an OEM-style chucking reamer for use in standard machine tool chucks and collet systems accepting a straight-cylindrical shank in the applicable diameter range.

Installation Notes

Installation is performed by qualified machinists following standard machine tool setup procedures. Secure the straight shank firmly in a precision chuck or collet and verify runout before cutting. Power down and lock out the machine spindle before tool changes. Use appropriate cutting fluid for the workpiece material to extend tool life and maintain bore finish quality.