Hertel 79888897 Chucking Reamer 0.053 in Solid Carbide

Product Description

The HERTEL 79888897 is a solid carbide chucking reamer designed for precision hole finishing in machine-tool applications. With a reamer diameter of 0.053 inches and a tight tolerance of 0.0000 to 0.0002 inches, this tool delivers accurate, repeatable results in small-diameter bore work. The straight flute geometry and right-hand cutting direction suit it for through-hole and blind-hole reaming on CNC machining centers, drill presses, and turret lathes. At 1.5 inches overall length with a 0.375-inch flute length, it is built for compact, close-tolerance work where control over final bore size is critical. Machinists and toolmakers specify solid carbide construction when working harder materials or where tool life and rigidity outweigh the cost premium over HSS.

This chucking reamer is suited for precision reaming operations in metalworking shops, production machining environments, and toolroom settings. The straight cylindrical shank allows direct mounting in standard drill chucks, collet chucks, or floating reamer holders. Its small diameter range makes it appropriate for instrument components, hydraulic valve bodies, injector bores, and similar fine-tolerance applications where hole finish and dimensional accuracy are the primary requirements. The bright uncoated finish is compatible with a range of cutting fluids and is the standard choice when coating interaction with the workpiece material is a concern.

Key Features

• Solid carbide construction for rigidity and extended tool life in harder workpiece materials
• Diameter tolerance of 0.0000 to 0.0002 inches for close-tolerance bore finishing
• 4-flute straight geometry for consistent chip evacuation in through-hole applications
• Right-hand cutting direction compatible with standard spindle rotation
• Straight cylindrical shank fits standard chucks and collet systems without adapters
• Bright uncoated finish suitable for use with most water-soluble and oil-based cutting fluids

Compatibility

Designed as an OEM-style chucking reamer for use in any machine tool accepting a straight cylindrical shank at the 0.053-inch diameter range.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Secure the straight shank firmly in a drill chuck, collet chuck, or floating holder before operation, and verify runout with a dial indicator before cutting to protect the close-tolerance geometry. Apply appropriate cutting fluid for the workpiece material to reduce heat and extend tool life. Never force a reamer into an undersized pilot hole; the pre-drilled or bored hole should be within the recommended allowance for the finished diameter.