Cleveland C25301 Chucking Reamer Wire 20 0.1610 in Hss

Product Description

The CLEVELAND C25301 is a straight-flute chucking reamer designed to finish-ream holes to a precise 0.1610 inch diameter, corresponding to wire gauge size 20. Manufactured from high-speed steel with a bright, uncoated finish, it delivers consistent dimensional accuracy in ferrous and non-ferrous materials. The straight shank is compatible with standard drill chucks and collet holders. With six flutes and a 1-1/8 inch flute length, the tool produces a smooth bore finish while maintaining cutting edge rigidity. Overall length is 4.5 inches. Machinists, tool-and-die makers, and maintenance technicians use this reamer when a drilled hole must be brought to a tight final dimension.

This chucking reamer is suited for bench drill press, milling machine, or lathe operations where a through-hole or blind hole requires close-tolerance sizing. It is appropriate for job-shop, maintenance-repair-overhaul, and production environments. The right-hand cutting direction works with standard right-hand spindle rotation. Wire gauge sizing makes it a practical choice when working from legacy prints that specify wire gauge rather than decimal inch hole dimensions.

Key Features

• 0.1610 inch finished bore diameter, wire gauge size 20
• High-speed steel construction for durability across a range of workpiece materials
• Six straight flutes for consistent chip clearance and finish quality
• Bright, uncoated finish — no coating to alter dimensional tolerances
• Straight shank fits standard drill chucks and collet holders
• Right-hand cut with standard right-hand spindle rotation

Compatibility

Designed as an OEM-style chucking reamer for use in standard drill chucks, collet holders, and floating reamer holders on drill presses, milling machines, and lathes requiring a wire gauge size 20 finished hole diameter.

Installation Notes

Chucking reamers are installed by licensed machinists or qualified maintenance technicians. Secure the straight shank firmly in a drill chuck or collet before operation, and ensure the spindle is fully stopped before mounting or removing the tool. Use appropriate cutting fluid for the workpiece material to extend tool life and improve surface finish. Pre-drill or bore the hole to within a few thousandths of final size before reaming to avoid overloading the cutting edges.