Hertel 79888749 Chucking Reamer 0.0355 in Solid Carbide

Product Description

The HERTEL 79888749 is a solid carbide chucking reamer designed for precision hole finishing in machining applications. Built with a straight flute geometry and a straight cylindrical shank, this reamer delivers controlled material removal and tight diameter tolerances in drilling and boring operations. At 0.0355 inches in diameter, it targets small-bore finishing work where dimensional accuracy is critical. The bright, uncoated carbide construction holds up well in a range of workpiece materials. With a diameter tolerance of 0.0000 to 0.0002 inches, this tool is suited for machinists and tool-and-die professionals who require repeatable, close-tolerance results on the shop floor.

This chucking reamer is intended for use in CNC machining centers, manual knee mills, and drill presses equipped with a suitable chuck or collet. Its compact 1.5-inch overall length and 0.25-inch flute length make it appropriate for shallow, small-diameter reaming passes in precision components such as instrument housings, hydraulic valve bodies, or similar tight-tolerance assemblies. Right-hand cutting direction aligns with standard spindle rotation on conventional machine tools. The straight cylindrical shank seats securely in standard collets and drill chucks.

Key Features

• Solid carbide construction provides rigidity and wear resistance in small-diameter reaming
• Straight flute geometry suited for finishing straight, non-interrupted bores
• Diameter tolerance of 0.0000 to 0.0002 inches for close-tolerance hole finishing
• Bright, uncoated finish compatible with a wide range of cutting fluids and materials
• 4-flute design balances surface finish quality with chip clearance in small bores
• Right-hand cut, straight cylindrical shank for use in standard chucks and collets

Compatibility

Designed as an OEM-style precision chucking reamer for use in CNC and manual machining equipment accepting straight cylindrical shank tooling in the applicable diameter range.

Installation Notes

Installation and use should be performed by qualified machinists following standard shop practices. Ensure the machine spindle is fully stopped and locked out before seating or removing the reamer from the chuck or collet. Use appropriate cutting fluid for the workpiece material to extend tool life and maintain surface finish. Do not exceed the recommended feed and speed parameters for solid carbide tooling at this diameter, as small-diameter carbide tools are susceptible to breakage under side load or excessive feed force.