Cleveland C25297 Chucking Reamer Wire Size 21 Hss

Product Description

The CLEVELAND C25297 is a wire-size chucking reamer designed to finish-ream drilled or bored holes to a precise diameter of 0.1590 inches (wire size 21). Constructed from high-speed steel (HSS) with a bright, uncoated finish, this reamer delivers consistent cutting performance in a wide range of workpiece materials. The straight flute geometry and right-hand cut make it well suited for through-holes and blind holes in materials where chip management is straightforward. With an overall length of 4.5 inches and a flute length of 1.125 inches, the C25297 fits standard drill press chucks and CNC toolholders equally well.

This reamer is intended for use in machine shop environments, toolrooms, and production floor applications where hole tolerance and surface finish are critical. It is appropriate for use in drill presses, lathes, milling machines, and CNC machining centers. Wire-size reamers like this one are commonly used when a standard fractional or letter-size reamer does not match the required hole diameter. The straight shank allows direct clamping in a drill chuck or collet without additional adapters.

Key Features

• Reamer diameter of 0.1590 inches corresponds to wire size 21 for precise hole finishing
• High-speed steel construction provides durability across a broad range of metals and plastics
• Six-flute straight design produces smooth surface finish in through-holes and blind holes
• Bright, uncoated finish allows easy visual inspection of cutting edges before and after use
• Straight shank accepts standard drill chucks and collets without adapters
• Right-hand cut for use with conventional clockwise spindle rotation

Compatibility

Designed as a standard machine chucking reamer for use in drill presses, lathes, milling machines, and CNC machining centers accepting a straight-shank toolholder or collet sized for the shank diameter.

Installation Notes

Chucking reamers are installed and operated by qualified machinists or toolroom technicians. Ensure the spindle is fully stopped and the machine is powered off before loading or removing the tool from the chuck or collet. Use appropriate cutting fluid for the workpiece material to extend tool life and improve surface finish. Do not use a chucking reamer to remove excessive stock — drill the hole to near-final size before reaming.