Hertel 2291516 Chucking Reamer Size 51 Hss 4 Flute

Product Description

The HERTEL 2291516 is a straight-flute chucking reamer designed for precision hole finishing in metal components. Built from high-speed steel (HSS) with a bright, uncoated finish, it is sized to wire gauge number 51, corresponding to a decimal diameter of 0.0670 inches. The straight-cylindrical shank seats securely in standard drill chucks or collet holders. With a 3-inch overall length and a 3/4-inch flute length, this reamer is suited for light-duty through-hole and blind-hole finishing operations where tight diameter tolerances are required. Right-hand cutting direction is standard for conventional machine reaming applications.

This reamer is used in machining environments where small-diameter holes must be brought to a precise finished size. Typical applications include finish-reaming pilot holes, dowel pin holes, and clearance holes in ferrous and non-ferrous stock. It is appropriate for use in drill presses, CNC machining centers, turret lathes, and manual milling machines. The 4-flute geometry provides a stable cutting action at small diameters. Machinists, toolroom operators, and precision fabricators are the primary users of this tool size.

Key Features

• Wire gauge size 51 with decimal diameter of 0.0670 inches for precise small-bore finishing
• High-speed steel (HSS) construction provides durability across a range of workpiece materials
• Bright, uncoated finish suitable for general-purpose reaming applications
• 4-flute straight geometry delivers stable cutting action and consistent hole quality
• Straight-cylindrical shank for compatibility with standard drill chucks and collet holders
• Right-hand cutting direction for conventional machine reaming setups

Compatibility

Designed as a standard chucking reamer for use in machine tools accepting straight-cylindrical shank tooling at this diameter range, including drill presses, lathes, and milling machines with appropriate chuck or collet capacity.

Installation Notes

Chucking reamers are installed and operated by machinists in properly equipped machine tool environments. Ensure the machine spindle is fully stopped and de-energized before mounting or removing the reamer. Secure the shank firmly in a drill chuck or precision collet to minimize runout, which directly affects finished hole quality. Use appropriate cutting fluid for the workpiece material to extend tool life and improve surface finish.