Hertel 2290054 Chucking Reamer 5/64 in Hss 4 Flute

Product Description

The HERTEL 2290054 is a straight-flute chucking reamer designed for precision hole finishing in metal workpieces. Built from high-speed steel (HSS) with a bright, uncoated finish, it delivers accurate sizing on through-holes and blind holes where tight tolerances are required. The reamer measures 0.0781 inches (5/64 inch) in diameter with a 3-inch overall length and a 3/4-inch flute length. The straight-cylindrical shank seats securely in standard drill chucks or collet holders. With 4 flutes and right-hand cutting direction, it produces a clean, consistent bore finish. Machinists, tool and die makers, and general metalworking shops use this reamer for production and maintenance applications.

This chucking reamer is suited for light-duty reaming operations on ferrous and non-ferrous metals in manual drill presses, CNC machining centers, and turret lathes. Its small diameter makes it appropriate for precision instrument components, hydraulic fittings, and close-tolerance pin and shaft holes. The bright uncoated HSS construction performs well in a wide range of general-purpose cutting fluids and coolants. It is sold as a single unit and is appropriate for both production shops and maintenance environments requiring accurate small-diameter hole finishing.

Key Features

• HSS construction provides toughness and wear resistance for general metalworking applications
• 4 straight flutes with right-hand cutting direction for consistent material removal
• Bright uncoated finish suits a broad range of materials and cutting fluids
• Straight-cylindrical shank for direct chuck or collet mounting without additional adapters
• 5/64 inch (0.0781 inch) diameter for small, precise bore finishing

Compatibility

Designed as a standard chucking reamer for use in drill presses, CNC machining centers, turret lathes, and other machine tool setups accepting a straight-cylindrical shank in the corresponding collet or chuck size.

Installation Notes

Installation and use should be performed by qualified machinists familiar with reaming operations. Ensure the spindle is fully stopped and the machine is powered down before loading or removing the reamer from the chuck or collet. Use appropriate cutting fluid or coolant for the workpiece material to extend tool life and maintain bore finish quality. Do not exceed the recommended feed and speed parameters for the workpiece material and reamer diameter.