Hertel 72037807 Chucking Reamer 0.78 in Hss 8 Flute

Product Description

The HERTEL 72037807 is a straight-flute chucking reamer designed for precision hole finishing in metal and similar materials. Built from high-speed steel (HSS) with a bright uncoated finish, it delivers accurate sizing for holes in the 0.78-inch range. The straight-cylindrical shank seats securely in standard chuck-style holders, and the right-hand cutting direction suits conventional drilling setups. With 8 flutes and a 2.5-inch cutting length, this reamer provides consistent surface finish and dimensional accuracy. It weighs 0.23 pounds and has an overall length of 9.5 inches. Machinists and toolroom technicians reach for this reamer when bore tolerances demand controlled material removal after drilling.

This reamer is suited for machine shop, toolroom, and production environments where repeatable hole sizing is required. It handles a range of workpiece materials compatible with HSS tooling, including mild steel, aluminum, brass, and similar metals. Typical applications include finishing drilled or bored holes to close tolerances in fixtures, dies, and mechanical assemblies. The 9.5-inch overall length provides reach for moderately deep holes or setups requiring additional clearance from the chuck face.

Key Features

• 0.7800-inch cutting diameter for precise hole finishing to nominal size
• 8 straight flutes provide stable, chatter-resistant cutting action
• High-speed steel (HSS) construction withstands the heat and wear demands of production reaming
• Bright uncoated finish — suitable for use with standard cutting fluids
• Straight-cylindrical shank mounts directly in drill chucks or collet-style holders
• Right-hand cutting direction compatible with standard spindle rotation

Compatibility

Designed as an OEM-style chucking reamer for use in drill presses, lathes, and CNC machining centers equipped with straight-shank chuck or collet toolholders accepting a 0.7800-inch shank diameter tool.

Installation Notes

A licensed machinist or qualified toolroom technician should install and operate this reamer. Secure the shank firmly in a properly sized chuck or collet before use, and verify that the spindle speed and feed rate are appropriate for the workpiece material and HSS tooling. Apply a suitable cutting fluid throughout the reaming operation to extend tool life and maintain surface finish quality. Always power down and lock out the machine spindle before changing or inspecting tooling.