Hertel 79889325 Chucking Reamer 0.109 in Solid Carbide

Product Description

The HERTEL 79889325 is a solid carbide chucking reamer designed for precision hole finishing in machine shop and production environments. With a reamer diameter of 0.109 inches and a tight diameter tolerance of 0.0000 to 0.0002 inches, this tool delivers accurate, repeatable results in close-tolerance bore applications. The bright, uncoated solid carbide construction offers excellent rigidity and wear resistance across a range of workpiece materials. The four-flute, straight-flute geometry provides smooth chip evacuation and consistent surface finish. Overall length is 2.25 inches with a 0.625-inch flute length. This reamer is installed and operated by machinists and toolroom professionals in CNC and manual machine setups.

This chucking reamer is suited for production drilling and finishing operations where precise hole diameter and surface finish are required. The straight cylindrical shank allows direct mounting in drill chucks, collets, and floating reamer holders on machining centers, drill presses, and lathes. Right-hand cutting direction is standard for conventional clockwise spindle operation. Its compact overall length makes it appropriate for shallow-hole reaming applications in small-diameter bore work.

Key Features

• Solid carbide construction for high rigidity and extended tool life
• Diameter tolerance of 0.0000 to 0.0002 inches for close-tolerance hole finishing
• Four straight flutes for smooth chip flow and consistent finish
• Bright, uncoated finish suitable for a broad range of workpiece materials
• Straight cylindrical shank compatible with standard chucks and collet systems
• Right-hand cutting direction for conventional spindle operation

Compatibility

Designed as an OEM-style chucking reamer for use in standard drill chucks, collets, and floating holder systems on machining centers, lathes, and drill presses accepting a straight cylindrical shank.

Installation Notes

Chucking reamers are installed and operated by machinists in powered machine tool setups. Ensure the machine spindle is fully stopped and the tool holder is secure before inserting or removing the reamer. Use appropriate cutting fluid for the workpiece material to promote chip evacuation and extend tool life. Pre-drill or bore the hole to the correct undersize diameter before reaming to achieve the specified tolerance.