Hertel 79890679 Chucking Reamer Wire 32 Solid Carbide

Product Description

The HERTEL 79890679 is a solid carbide chucking reamer designed to produce accurate, finished-diameter holes in metalworking and machining applications. Built to wire size 32 (0.1160 inch decimal diameter), this reamer features a straight flute geometry and a straight cylindrical shank for secure chuck holding. The bright, uncoated carbide construction delivers hard, wear-resistant cutting edges suitable for ferrous and non-ferrous materials. With a tight diameter tolerance of 0.0000 to 0.0002 inch, it is well-suited for precision hole finishing where tight fits and smooth bore surfaces are required.

This chucking reamer is intended for use in drill presses, CNC machining centers, lathes, and manual milling machines where a machine-driven reaming operation is performed. The 4-flute, right-hand cutting configuration provides balanced chip evacuation and consistent surface finish. It is appropriate for tool rooms, production shops, and maintenance environments working with small-diameter precision bores requiring close dimensional control. The 2.25-inch overall length and 0.625-inch flute length make it a compact tool suited for shallow to moderate reaming depths.

Key Features

• Wire size 32 diameter — 0.1160 inch decimal equivalent for precise small-bore finishing
• Solid carbide construction for superior wear resistance compared to high-speed steel
• Diameter tolerance of 0.0000 to 0.0002 inch for tight, repeatable fit classes
• 4-flute straight configuration promotes even cutting load and clean chip clearance
• Bright uncoated finish — compatible with a wide range of cutting fluids and workpiece materials
• Right-hand cut with straight cylindrical shank for standard chuck or collet holding

Compatibility

Designed as a machine-driven chucking reamer for use with standard drill chucks, ER collets, and similar straight-shank toolholding systems on drill presses, lathes, and machining centers.

Installation Notes

Installation and use should be performed by a qualified machinist or tooling technician. Ensure the machine spindle is fully stopped and power is locked out before loading or removing the reamer from the chuck or collet. Use appropriate cutting fluid for the workpiece material to extend tool life and improve surface finish. Do not use this tool for hand reaming — it is designed for machine-driven operation only.