Hertel 79889275 Chucking Reamer 0.103in Solid Carbide

Product Description

The HERTEL 79889275 is a solid carbide chucking reamer designed for precision hole finishing in metalworking and machining applications. Built from uncoated solid carbide, it delivers tight diameter tolerances in the range of 0.0000 to 0.0002 inches, making it well suited for work where hole size accuracy is critical. The straight flute geometry and right-hand cut produce clean, consistent finishes in through and blind holes. With an overall length of 2.25 inches and a flute length of 0.625 inches, this compact reamer is sized for small-diameter work. Machinists and tool-and-die professionals use this type of reamer in drill presses, CNC machining centers, and manual mills.

This chucking reamer is intended for small-hole reaming operations where a nominal diameter of 0.103 inches is required. The straight cylindrical shank allows direct mounting in standard drill chucks or collet holders without additional adapters. It is commonly used in precision machining environments including aerospace component work, tooling fabrication, and general metalworking where final hole diameter must meet close tolerances. The four-flute design provides stable cutting action and good chip clearance at typical reaming feed rates.

Key Features

• Solid carbide construction for hardness and wear resistance in ferrous and non-ferrous materials
• Bright uncoated finish suitable for general-purpose reaming applications
• Diameter tolerance of 0.0000 to 0.0002 inches for precise hole sizing
• Four straight flutes with right-hand cutting direction
• Straight cylindrical shank for direct chuck or collet mounting
• Compact overall length of 2.25 inches for use in confined setups

Compatibility

Designed as an OEM-style precision reamer for use in standard drill chucks and collet systems accepting straight cylindrical shanks at 0.103 inches nominal diameter.

Installation Notes

Chucking reamers are installed and operated by machinists following standard machining safety practices. Power down and de-energize the machine spindle before inserting or removing the reamer from the chuck or collet. Secure the shank fully in the holder before operation and verify runout with a dial indicator when tight tolerances are required. Always use appropriate cutting fluid for the workpiece material to extend tool life and maintain surface finish quality.