Hertel 79890398 Chucking Reamer 5/8 in Solid Carbide

Product Description

The HERTEL 79890398 is a solid carbide chucking reamer designed for precision hole finishing in machine tool applications. With a 5/8 inch (0.6250 inch decimal) diameter, a 4 inch overall length, and a 1-1/2 inch straight flute length, this reamer delivers consistent bore sizing and surface finish in production and job-shop environments. Solid carbide construction provides rigidity and wear resistance suited for hard materials and high-cycle machining. The straight cylindrical shank mounts directly in standard drill chucks, collets, or floating reamer holders. Machinists and tool-and-die professionals specify this type of reamer where tight hole tolerances and repeatable finishes are required.

The 79890398 is suited for through-hole and blind-hole reaming operations on machining centers, lathes, and drill presses. It is appropriate for ferrous and non-ferrous workpiece materials where a solid carbide cutting edge provides an advantage over high-speed steel alternatives. The straight flute geometry works well in short-chipping materials and stable fixturing setups. This reamer is sold individually and is a direct stock item for maintenance, repair, and production machining operations.

Key Features

• Solid carbide construction for rigidity and extended tool life in high-cycle applications
• 0.6250 inch (5/8 inch) reamer diameter for precise bore finishing
• 4 inch overall length with a 1-1/2 inch flute length for controlled cutting engagement
• Straight flute design suited for short-chipping materials and stable setups
• Straight cylindrical shank compatible with standard chucks, collets, and floating holders
• Single-piece solid carbide body eliminates brazed joint failure points

Compatibility

Designed as an OEM-style replacement or direct-use chucking reamer for machine tool applications requiring a 5/8 inch finished bore diameter with a straight cylindrical shank interface.

Installation Notes

Installation and use should be performed by qualified machinists familiar with reaming operations and machine tool safety protocols. Always secure the workpiece and verify spindle speed and feed rate are appropriate for the material and reamer diameter before cutting. Ensure the shank is fully seated and clamped in the holder to prevent runout. Do not use a reamer to remove excessive stock — pre-drill or bore to near-final size before reaming.