Hertel 72293210 Chucking Reamer 0.1870 in Hss 6 Flute

Product Description

The HERTEL 72293210 is a high-speed steel (HSS) chucking reamer designed for precision hole finishing in metal machining applications. With a reamer diameter of 0.1870 inches and a 6-flute straight-flute geometry, it delivers smooth, accurate bore sizing in a single pass. The bright, uncoated finish is suited for use with cutting fluids on a wide range of ferrous and non-ferrous materials. Overall length is 3.5 inches with a 1.125-inch flute length. The straight-cylindrical shank allows secure chuck mounting in drill presses, lathes, and CNC machining centers. This tool is specified as a dowel pin reamer, making it well suited for close-tolerance pin hole applications.

This reamer is intended for machine shop and production environments where consistent, repeatable hole tolerances are required. Typical applications include finishing drilled or bored holes to precise diameter in steel, cast iron, aluminum, and similar machinable materials. The right-hand cutting direction is compatible with standard machine spindle rotation. Its compact overall length makes it a practical choice for both bench-top drill press work and turret lathe operations where tool clearance is a consideration.

Key Features

• 0.1870-inch reamer diameter for precise hole finishing in the 0.1500 to 0.1999-inch range
• 6-flute straight-flute geometry for smooth surface finish and accurate sizing
• HSS construction provides toughness and wear resistance across a broad range of machinable metals
• Bright, uncoated finish compatible with standard cutting fluids
• Straight-cylindrical shank for reliable chuck or collet mounting
• Specified as a dowel pin reamer for close-tolerance pin hole applications
• Right-hand cutting direction matches standard machine spindle rotation

Compatibility

Designed as an OEM-style machine reamer suitable for use in drill presses, engine lathes, turret lathes, and CNC machining centers equipped with a standard chuck or collet capable of accepting a straight-cylindrical shank.

Installation Notes

Chucking reamers are installed and operated by qualified machinists or toolroom technicians. Secure the straight-cylindrical shank firmly in a drill chuck or collet before operation, and verify runout before engaging the workpiece. Always apply appropriate cutting fluid for the material being reamed to extend tool life and improve surface finish. Reduce spindle speed relative to drilling and feed consistently to avoid chatter or oversizing the bore.