Hertel 79888830 Chucking Reamer 0.047 in Solid Carbide

Product Description

The HERTEL 79888830 is a solid carbide chucking reamer designed for precision hole finishing in metalworking and machining applications. With a reamer diameter of 0.047 inches and a tight diameter tolerance of 0.0000 to 0.0002 inches, this tool delivers consistent, accurate bore sizing in a single pass. The straight flute geometry and right-hand cut make it well suited for through-holes and short blind holes in a wide range of materials. At 1.5 inches overall length with a 0.375-inch flute length, this is a compact tool built for small-diameter work. It is installed by machinists, tool-and-die makers, and precision shop technicians.

This chucking reamer is intended for use in drill presses, CNC machining centers, lathes, and manual milling machines where a straight-cylindrical shank can be held in a drill chuck or collet. The 4-flute straight design suits finishing operations in ferrous and non-ferrous metals where hole geometry and surface finish tolerance are critical. The bright, uncoated finish makes it appropriate for applications where coating contamination is a concern or where cutting fluid is the primary lubricant.

Key Features

• Solid carbide construction for rigidity and wear resistance in small-diameter finishing operations
• 0.047-inch reamer diameter with tolerance held to 0.0000 to 0.0002 inches for precise bore sizing
• 4-flute straight flute geometry for smooth cutting action and chip clearance
• Right-hand cutting direction with straight-cylindrical shank for standard chuck or collet holding
• Bright, uncoated finish compatible with a broad range of cutting fluids and materials
• Compact 1.5-inch overall length suited for tight-clearance setups

Compatibility

Designed as an OEM-style chucking reamer for use in standard drill chucks and collet systems accepting a straight-cylindrical shank in small-diameter precision machining setups.

Installation Notes

Chucking reamers are installed by machinists and should be secured firmly in a drill chuck or collet before operation. Power down or de-energize the machine spindle completely before changing tooling. Ensure the pre-drilled pilot hole is sized appropriately for the reamer diameter to avoid tool deflection or breakage on this small-diameter carbide tool. Carbide is brittle — avoid lateral loading or interrupted cuts that can cause chipping.