Hertel 5765177 Chucking Reamer 0.0780 in Hss 4 Flute

Product Description

The HERTEL 5765177 is a straight-flute chucking reamer designed for precision hole finishing in metal fabrication and machine shop applications. Built from high-speed steel (HSS) with a bright, uncoated finish, it delivers accurate sizing for holes in the 0.0500 to 0.0999 inch diameter range. This reamer measures 0.0780 inches in diameter, has an overall length of 3 inches, and a flute length of 0.75 inches. The straight-cylindrical shank provides secure chuck retention on drill presses, lathes, and CNC machining centers. It features 4 flutes with right-hand cutting direction for standard clockwise operation.

This reamer is suited for production and maintenance machining tasks where close-tolerance hole finishing is required. It is appropriate for use in general metalworking, tool and die work, and precision assembly environments. The small diameter makes it particularly useful for finishing drilled holes in instrument components, hydraulic bodies, and other precision parts where dimensional accuracy is critical. A licensed machinist or toolroom technician would typically specify this tool for reaming operations on ferrous and non-ferrous materials.

Key Features

• 0.0780 inch reamer diameter for close-tolerance hole finishing
• 4 straight flutes with right-hand cutting direction
• HSS construction for durability across ferrous and non-ferrous materials
• Bright, uncoated finish suitable for use with cutting fluids
• Straight-cylindrical shank for secure chuck or collet holding
• 3 inch overall length with 0.75 inch flute length

Compatibility

Designed as an OEM-style chucking reamer for use in standard drill press chucks, lathe tailstock chucks, and collet holders accepting straight-cylindrical shanks in this diameter range.

Installation Notes

Chucking reamers should be installed by a qualified machinist using a properly sized chuck or collet to ensure runout is minimized. Always bring the workpiece or spindle to a complete stop before inserting or removing the reamer. Use an appropriate cutting fluid for the workpiece material to extend tool life and maintain surface finish quality. Avoid applying lateral force during reaming, as this reamer is designed for axial feed only.