Hertel 79889366 Chucking Reamer 0.118 in Solid Carbide

Product Description

The HERTEL 79889366 is a solid carbide chucking reamer designed for precision hole finishing in machine shop and production environments. Built with a straight cylindrical shank and a straight 4-flute geometry, it delivers controlled material removal and tight dimensional tolerances on pre-drilled or bored holes. The 0.118 inch diameter is held to a tolerance of 0.0000 to 0.0002 inches, making it suitable for applications that demand consistent, repeatable fit. Right-hand cutting direction and a bright uncoated finish are standard. Machinists and tool-room operators install this reamer in CNC machining centers, drill presses, and manual mills using a collet chuck or drill chuck.

This chucking reamer is used in metalworking operations requiring precise hole sizing, including jig and fixture work, tooling manufacture, and general production machining. The 5/8 inch flute length accommodates shallow-to-moderate depth reaming passes. The 2-1/4 inch overall length keeps the tool compact for use in tight setups or smaller machine spindles. It is appropriate for both ferrous and non-ferrous materials where solid carbide tooling is specified for extended tool life or hard-material applications.

Key Features

• Solid carbide construction for rigidity and wear resistance in demanding cuts
• 0.118 inch diameter with a tight tolerance of 0.0000 to 0.0002 inches for precision hole finishing
• Straight 4-flute geometry provides consistent chip evacuation and surface finish
• Straight cylindrical shank compatible with standard collet chucks and drill chucks
• Right-hand cutting direction, bright uncoated finish
• Compact 2-1/4 inch overall length suits confined setups and smaller spindles

Compatibility

Designed as an OEM-style solid carbide chucking reamer for use in any machine spindle accepting a straight cylindrical shank tool of 0.118 inch diameter.

Installation Notes

Installation is performed by qualified machinists or tool-room personnel. Secure the straight shank in a collet chuck or drill chuck rated for the spindle speed selected for the material being reamed. Power down and lock out the machine before changing tooling. Do not use this reamer as a drill; the workpiece hole must be pre-drilled or bored to the appropriate undersize before reaming.