Hertel 83246959 Chucking Reamer Letter W Solid Carbide

Product Description

The HERTEL 83246959 is a solid carbide chucking reamer sized to Letter W (0.3860 inches diameter) for precision hole finishing in metalworking and machining applications. Built from solid carbide with a bright, uncoated finish, it delivers consistent sizing with a diameter tolerance of 0.0000 to 0.0003 inches. The straight-flute, right-hand-cut design runs 3.5 inches overall with a 1.25-inch flute length. Six flutes provide smooth chip evacuation and a refined surface finish. This reamer is intended for use in a machine spindle or chuck, not for hand operation.

This chucking reamer suits production and job-shop environments where tight hole tolerances are required in ferrous and non-ferrous materials. The straight cylindrical shank mounts directly in a drill chuck, collet, or floating holder on milling machines, lathes, or drill presses. Letter W sizing places the reamer in the 0.3500 to 0.3999 inch diameter range, making it appropriate for close-tolerance finish reaming of drilled or bored holes in that class.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard or abrasive materials
• Letter W diameter at 0.3860 inches with a tolerance of 0.0000 to 0.0003 inches
• Six straight flutes for smooth cutting action and consistent surface finish
• Right-hand cutting direction; straight cylindrical shank for standard chuck or collet mounting
• Bright, uncoated finish suitable for use with cutting fluids on a wide range of work materials
• 3.5-inch OAL with a 1.25-inch flute length provides adequate reach for typical through-hole and shallow blind-hole applications

Compatibility

Designed as an OEM-style machine chucking reamer for use in drill presses, lathes, milling machines, and machining centers equipped with a standard drill chuck or collet accepting a straight cylindrical shank in the 0.3500 to 0.3999 inch diameter class.

Installation Notes

A licensed machinist or toolroom technician should install this reamer in a properly sized chuck or collet, ensuring the shank is fully seated and securely clamped before operation. Power down and lock out the machine spindle before inserting or removing the tool. Use an appropriate cutting fluid for the work material to extend tool life and maintain tolerance. Avoid hand-reaming applications; this tool is designed for machine use only.