Hertel 72038474 Chucking Reamer 0.8470 in Hss 8 Flute

Product Description

The HERTEL 72038474 is a straight-flute chucking reamer designed for precision hole finishing in machine shop and production environments. Built from high-speed steel (HSS) with a bright, uncoated finish, this reamer delivers accurate final bore diameters in ferrous and non-ferrous materials. The reamer measures 0.8470 inches in diameter with a 10 inch overall length and an 8-flute straight-flute geometry that produces a clean, consistent finish on the bore wall. The straight-cylindrical shank mounts directly into standard drill chucks or collet holders on mills, lathes, and drill presses. It is intended for installation and use by machinists and tool-room professionals performing close-tolerance reaming operations.

This chucking reamer is suited for through-hole and blind-hole finishing applications in general machining, toolroom work, and production runs where a nominal 0.8470 inch finished bore is required. The 2-5/8 inch flute length provides adequate cutting depth for typical bore depths in this diameter range. Right-hand cutting direction makes it compatible with standard spindle rotation on conventional machine tools. This is a standard-size, non-dowel-pin, non-over-under reamer intended for direct-fit use at its stated diameter.

Key Features

• 0.8470 inch reamer diameter for close-tolerance bore finishing
• High-speed steel (HSS) construction for durability across a range of workpiece materials
• 8 straight flutes for smooth, even material removal and consistent surface finish
• Bright, uncoated finish — compatible with cutting fluids used in standard reaming operations
• Straight-cylindrical shank for use in drill chucks or collet-style toolholders
• Right-hand cutting direction for use with standard spindle rotation

Compatibility

Designed as a standard chucking reamer for use in any machine tool equipped to accept a straight-cylindrical shank in this diameter range, including lathes, vertical mills, and drill presses. No specific OEM or model compatibility was stated in the product data.

Installation Notes

Chucking reamers are installed and operated by qualified machinists. Secure the straight-cylindrical shank firmly in a drill chuck or collet before use, and verify runout before taking a finishing pass. Always apply an appropriate cutting fluid for the workpiece material to extend tool life and improve surface finish. Do not use a chucking reamer to remove stock beyond its designed allowance — pre-drill or bore the hole to the correct undersize before reaming.