Hertel 72294184 Chucking Reamer Wire 18 0.1695 in Hss

Product Description

The HERTEL 72294184 is a high-speed steel chucking reamer designed to finish-ream holes to a precise wire gauge size 18 diameter of 0.1695 inches. With six spiral flutes in a right-hand spiral direction, it removes material evenly and produces a clean, tight-tolerance bore in a single pass. The straight-cylindrical shank seats securely in a standard drill chuck or collet setup. At 3.25 inches overall length with a 1.125-inch flute length, this reamer is sized for short-reach finishing work on small-diameter bores in metal components. It is a standard production reamer used by machinists, toolroom technicians, and maintenance mechanics.

This chucking reamer is suited for reaming wire-gauge holes in ferrous and non-ferrous metals on drill presses, lathes, and milling machines. It fits applications where hole size falls in the 0.1500 to 0.1999 inch decimal inch range and a wire size 18 finished bore is required. Common use cases include fixture manufacturing, precision assembly, and any production or repair task that demands a reamed hole over a drilled one for fit, finish, or dimensional accuracy.

Key Features

• Wire size 18 diameter: 0.1695 inches, within the 0.1500 to 0.1999 inch decimal inch range
• Six right-hand spiral flutes for smooth chip evacuation and consistent bore finish
• High-speed steel construction for durability across a wide range of metals
• Straight-cylindrical shank for direct chuck or collet mounting
• 3.25 inches overall length with 1.125-inch flute length for short-reach applications
• Not configured as a dowel pin reamer or over/under size reamer — standard on-size geometry

Compatibility

Designed as a standard chucking reamer for use in drill presses, lathes, and milling machines equipped with a chuck or collet that accepts a straight-cylindrical shank; fits applications requiring a wire size 18 finished bore diameter.

Installation Notes

A licensed machinist or trained toolroom technician should mount this reamer in a properly sized collet or drill chuck, ensuring the shank is fully seated and runout is minimized before operation. The workpiece and machine spindle should be secured and the correct cutting fluid applied for the base material being reamed. Never use a reamer to remove excess stock left by drilling — follow standard practice of drilling undersize and reaming to final dimension. Inspect flutes for wear or chipping before each use to avoid oversized or out-of-round bores.