Hertel 79890471 Chucking Reamer Wire Size 9 Solid Carbide

Product Description

The HERTEL 79890471 is a solid carbide chucking reamer ground to a wire gauge No. 9 diameter of 0.1960 inches. It delivers a tight diameter tolerance of 0.0000 to 0.0002 inches, making it suitable for finish reaming operations where bore accuracy is critical. The 4-flute straight-flute geometry provides consistent chip evacuation in through-hole and blind-hole applications. The bright, uncoated carbide surface is well suited to non-ferrous metals, plastics, and other materials where coating buildup would reduce dimensional accuracy. At 3.0 inches overall length with a 1-inch flute length, this reamer is sized for compact chucking setups in CNC machining centers, manual mills, and drill presses.

This reamer is intended for precision hole finishing in machine shop environments, toolrooms, and production floor applications. The straight cylindrical shank allows direct mounting in standard chucks and collets without additional adapters. Right-hand cutting direction is standard for conventional CNC and manual drilling equipment. The compact flute length of 1 inch suits shallow-depth finishing passes where controlled stock removal is required rather than deep-bore reaming.

Key Features

• Wire gauge No. 9 diameter: 0.1960 inches with 0.0000 to 0.0002 inch tolerance
• Solid carbide construction for rigidity and wear resistance
• 4-flute straight-flute design for consistent chip flow and surface finish
• Bright uncoated finish — compatible with a wide range of workpiece materials
• Straight cylindrical shank for use in standard chucks and collets
• Right-hand cut, 3.0 inches overall length, 1-inch flute length

Compatibility

Designed as an OEM-style chucking reamer for use in standard drill press chucks, CNC machining center collets, and manual mill setups accepting straight cylindrical shank reamers in the No. 9 wire gauge diameter range.

Installation Notes

Chucking reamers are installed by licensed machinists and toolroom technicians. Power down and lock out the spindle before mounting or removing the reamer from the chuck or collet. Secure the straight shank with adequate clamping force to prevent pullout during the cutting pass. Apply appropriate cutting fluid for the workpiece material to extend tool life and maintain bore finish quality.