Hertel 72296155 Chucking Reamer 0.1855 in Hss 6 Flute

Product Description

The HERTEL 72296155 is a high-speed steel (HSS) chucking reamer designed to finish-ream pre-drilled holes to a precise 0.1855-inch diameter. With a 6-flute, right-hand spiral flute design and a straight-cylindrical shank, this reamer delivers smooth material removal and consistent hole quality in production and maintenance machining environments. The overall length is 3.5 inches, with a flute length of 1.125 inches, making it well suited for shallow-to-medium depth reaming passes. It is classified as a dowel pin reamer within the 0.1500 to 0.1999 inch diameter range. Machinists, tool-and-die technicians, and maintenance mechanics install this type of reamer in drill presses, CNC machining centers, and manual lathes using standard chuck tooling.

This chucking reamer is intended for applications requiring tight-tolerance hole finishing in metals such as steel, cast iron, aluminum, and similar machinable materials. The right-hand spiral flute geometry helps evacuate chips effectively, reducing the risk of surface tearing in through-hole and blind-hole applications. It is appropriate for both production shop use and job-shop maintenance work where consistent bore sizing to dowel pin specifications is required. The straight-cylindrical shank provides broad compatibility with standard drill chucks and collet holders across common machine platforms.

Key Features

• 0.1855-inch finished bore diameter within the 0.1500 to 0.1999 inch dowel pin reamer range
• 6-flute right-hand spiral geometry for smooth chip evacuation and improved surface finish
• High-speed steel (HSS) construction for durability across a wide range of machinable metals
• Straight-cylindrical shank compatible with standard drill chucks and collet systems
• 3.5-inch overall length with 1.125-inch flute length for shallow-to-medium depth reaming
• Classified as a dowel pin reamer for precision fit applications

Compatibility

Designed as an OEM-style chucking reamer for use in drill presses, manual lathes, and CNC machining centers equipped with standard drill chucks or collet holders accepting a straight-cylindrical shank.

Installation Notes

Chucking reamers should be installed and removed only after the machine spindle has come to a complete stop and the machine is powered down or locked out per applicable safety procedures. Secure the straight-cylindrical shank firmly in the chuck or collet before operation to prevent runout. Use appropriate cutting fluid for the workpiece material to extend tool life and achieve the target surface finish. Always ream a pre-drilled pilot hole that is undersized relative to the finished diameter specification.