Hertel 2558377 Chucking Reamer 0.373 in Hss 6 Flute

Product Description

The HERTEL 2558377 is a straight-flute chucking reamer designed for precision hole finishing in machine shop and production environments. Ground from high-speed steel (HSS) with a bright, uncoated finish, this 6-flute reamer delivers consistent sizing at a 0.3730-inch diameter. The straight-cylindrical shank seats securely in a standard drill chuck or collet, and the 7-inch overall length provides adequate reach for most through-hole and blind-hole applications. It cuts right-hand and is also configured as a dowel pin reamer, making it a reliable choice for close-tolerance pin hole alignment work. Machinists and toolroom technicians are the primary users of this tooling.

This reamer is suited for light to moderate material removal in finishing operations on drill presses, manual mills, lathes, and CNC machining centers. It is commonly used in job shops, maintenance facilities, and production lines where repeatable hole diameter and surface finish are required. The 1.75-inch flute length handles standard material depths without excessive chip packing. Applications include sizing holes for dowel pins, bushings, and precision-fit fasteners in steel, cast iron, aluminum, and similar machinable materials.

Key Features

• 0.3730-inch reamer diameter for precision hole finishing
• HSS construction for durability across a range of ferrous and non-ferrous materials
• 6 straight flutes for smooth cutting action and consistent chip evacuation
• Bright, uncoated finish suitable for use with cutting fluids
• Straight-cylindrical shank for easy chuck or collet mounting
• Configured as a dowel pin reamer for close-tolerance alignment hole work

Compatibility

Designed as a standard chucking reamer for use in any machine tool accepting a straight-cylindrical shank in the appropriate diameter range. No specific model compatibility data was provided in the product input.

Installation Notes

Installation and use of this tooling should be performed by a qualified machinist or toolroom technician. Secure the shank fully in a properly sized chuck or collet before operation and verify runout before cutting. Always apply an appropriate cutting fluid for the workpiece material to extend tool life and improve hole finish. Never use a worn or oversized chuck that could allow shank slippage or introduce runout errors.