Hertel 2290112 Chucking Reamer 11/64 in Hss Straight Shank

Product Description

The HERTEL 2290112 is a straight-flute chucking reamer designed to finish-ream drilled holes to precise tolerances in metal workpieces. Built from high-speed steel (HSS) with a bright, uncoated finish, it delivers accurate sizing at a nominal diameter of 0.1719 inches (11/64 inches). The straight-cylindrical shank seats securely in standard drill press chucks, CNC machining centers, and lathe tailstocks. With an overall length of 4-1/2 inches and a flute length of 1-1/8 inches, it is suited for through-holes and blind holes in light to medium stock removal applications. Machinists and toolroom technicians use this reamer to bring bored or drilled holes to final fit.

This chucking reamer is intended for general metalworking applications where a close-tolerance finish hole is required. Typical uses include reaming clearance holes, pin-fit holes, and bearing bores in ferrous and non-ferrous materials. The right-hand cutting direction is standard for conventional machine reaming operations. It is sized within the 0.1500 to 0.1999 decimal inch diameter range, making it appropriate for precision hole finishing in production and job-shop environments alike.

Key Features

• Nominal diameter of 0.1719 inches (11/64 inches) for precision hole sizing
• High-speed steel (HSS) construction provides good wear resistance in metalworking applications
• Straight flute geometry suited for through-holes and short blind holes
• Straight-cylindrical shank compatible with standard drill chucks and collets
• Right-hand cutting direction for use with conventional machine spindle rotation
• Bright, uncoated finish allows for easy visual inspection of cutting edges

Compatibility

Designed as a standard chucking reamer for use in drill presses, CNC machining centers, lathes, and similar machine tools equipped with a compatible chuck or collet capable of accepting a straight-cylindrical shank.

Installation Notes

Chucking reamers are installed and operated by qualified machinists following standard machine tool safety practices. Ensure the machine spindle is fully stopped and locked out before mounting or removing the reamer. Secure the shank firmly in the chuck or collet to prevent runout, which degrades hole finish and tool life. Use appropriate cutting fluid for the workpiece material to extend tool life and achieve the desired surface finish.