Hertel 79890166 Chucking Reamer 3/32 in Solid Carbide

Product Description

The HERTEL 79890166 is a solid carbide chucking reamer designed for precision hole finishing in machining applications. With a reamer diameter of 3/32 inches (0.0938 decimal inches) and a tight diameter tolerance of 0.0000 to 0.0002 inches, this tool delivers accurate, repeatable bore sizing in a single pass. The straight flute geometry and right-hand cutting direction make it suitable for finishing through-holes and blind holes in a range of materials. At 2 inches overall length with a 1/2-inch flute length, it is sized for compact setups and close-tolerance work on CNC mills, drill presses, and manual lathes equipped with a drill chuck.

This chucking reamer is intended for production and repair machining environments where bore finish and dimensional accuracy are critical. The straight-cylindrical shank seats directly in a standard drill chuck or collet, making it easy to integrate into existing tooling setups. It is well suited for reaming small-diameter holes in ferrous and non-ferrous metals, plastics, and composites where a bright, uncoated solid carbide tool provides adequate performance without the added cost of a specialty coating.

Key Features

• Solid carbide construction for rigidity and wear resistance in small-diameter reaming
• Reamer diameter tolerance of 0.0000 to 0.0002 inches for close-tolerance bore finishing
• 4-flute straight flute geometry for smooth cutting action and consistent chip evacuation
• Bright/uncoated finish suitable for a wide range of workpiece materials
• Straight-cylindrical shank for direct chuck or collet mounting
• Right-hand cutting direction for standard spindle rotation setups

Compatibility

Designed as an OEM-style chucking reamer for use in any machine tool equipped with a drill chuck or collet capable of holding a straight-cylindrical shank in the appropriate diameter range.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. Secure the straight shank firmly in a drill chuck or precision collet before use and verify runout with a dial indicator when bore tolerance is critical. Power down the machine spindle completely before changing or adjusting tooling. Do not exceed the recommended feed and speed parameters for the workpiece material and tool diameter to avoid tool breakage in this small-diameter carbide reamer.