Cleveland C26418 Chucking Reamer 21/32 in Hss Straight Flute

Product Description

The CLEVELAND C26418 is a straight-flute chucking reamer designed for precision hole finishing in metal workpieces. Built from high-speed steel (HSS) with a bright, uncoated finish, it delivers consistent dimensional accuracy when bringing drilled or bored holes to final size. The reamer measures 0.6562 inches (21/32 inches) in diameter and carries an overall length of 9 inches. Eight flutes and a right-hand cutting direction provide smooth material removal and a clean bore finish. The straight shank seats directly in standard drill chucks or collet holders, making it a practical choice for lathe, drill press, and machining center work.

This chucking reamer is suited for general metalworking applications in job shops, maintenance facilities, and production environments. It is used wherever a drilled hole requires tight-tolerance finishing to a nominal 21/32-inch diameter. Machinists and tool-and-die technicians reach for this reamer when surface finish and bore straightness are critical to fit-up of pins, bushings, and close-tolerance assemblies.

Key Features

• 21/32 inch (0.6562 inch) finished bore diameter for precise hole sizing
• High-speed steel construction provides hardness and heat resistance for a wide range of ferrous and non-ferrous materials
• 8-flute straight design delivers smooth cutting action and consistent surface finish
• Right-hand cutting direction compatible with standard machine spindle rotation
• Straight shank fits standard drill chucks and collet toolholders without additional adapters
• Bright, uncoated finish suitable for use with cutting fluid for extended tool life

Compatibility

Designed as a standard chucking reamer for use in lathes, drill presses, and CNC machining centers equipped with a straight-shank collet or drill chuck capable of holding a 21/32-inch shank diameter.

Installation Notes

This reamer is installed by a machinist or tool-and-die technician and should be secured firmly in a compatible chuck or collet before use. Always bring the spindle to a complete stop before changing tooling. Use appropriate cutting fluid for the workpiece material to maintain reamer geometry and extend tool life. Do not use a chucking reamer to remove excessive stock — pre-drill or bore the hole to within 0.005 to 0.015 inches of final size before reaming.