Hertel 79890760 Chucking Reamer Wire Size 41 Solid Carbide

Product Description

The HERTEL 79890760 is a solid carbide chucking reamer designed to finish-ream precision holes to a wire size 41 diameter of 0.0960 inches. Built with four straight flutes and a straight cylindrical shank, this reamer delivers a right-hand cut with a bright, uncoated finish suited for tight-tolerance work. The 2-inch overall length and 0.5-inch flute length make it appropriate for shallow, controlled reaming passes. Diameter tolerance is held to 0.0000 to 0.0002 inches over nominal, making it a reliable choice for machinists and toolmakers who require consistent, repeatable hole sizing in small-diameter applications.

This reamer is used in machine shop and production environments where small-diameter holes must be brought to a precise finish size after drilling. Wire size 41 reamers are commonly applied to instrument components, precision fixtures, fastener clearance holes, and close-tolerance assemblies. It is designed for use in CNC machining centers, drill presses, and manual lathes where a collet or drill chuck holds the straight shank securely. Solid carbide construction makes it well suited for harder workpiece materials where high-speed steel tooling would wear prematurely.

Key Features

• Solid carbide construction for extended tool life in hard or abrasive materials
• Wire size 41 diameter at 0.0960 inches with a tolerance of 0.0000 to 0.0002 inches over nominal
• Four straight flutes provide smooth cutting action and consistent chip evacuation
• Right-hand cut with bright, uncoated finish for general-purpose reaming
• Straight cylindrical shank compatible with standard collets and drill chucks
• 2-inch overall length with 0.5-inch flute length for shallow-hole applications

Compatibility

Designed as a standard chucking reamer for use in any machine tool accepting a straight cylindrical shank; fits collets and drill chucks sized for the shank diameter of this wire size 41 tool.

Installation Notes

Chucking reamers are installed by qualified machinists or toolroom technicians. Ensure the machine spindle is fully stopped and the workpiece is securely fixtured before loading the tool. Use appropriate cutting fluid for the workpiece material to extend tool life and achieve the target surface finish. Do not use a reamer to enlarge a hole by more than the intended stock allowance, as overloading a small-diameter carbide tool can cause fracture.