Cleveland C25698 Chucking Reamer 21/64 in Hss Straight Flute

Product Description

The CLEVELAND C25698 is a straight-flute chucking reamer designed to finish-ream drilled holes to precise tolerances in machine tool setups. Built from high-speed steel (HSS) with a bright, uncoated finish, it delivers consistent dimensional accuracy on ferrous and non-ferrous materials. The reamer measures 0.3281 inches (21/64 inch) in diameter with a 6-inch overall length and a 1-1/2-inch flute length. Six flutes and a right-hand cutting direction produce a clean, true bore surface. Machinists and tool-room technicians reach for this style of reamer when a drilled hole needs to be brought to a final, close-tolerance diameter before assembly or fit-up.

The C25698 is suited for use in drill presses, lathes, CNC machining centers, and manual milling machines where a floating reamer holder or rigid setup is used. The straight shank accepts standard drill chucks and collet holders, making it compatible with a wide range of machine spindles. Typical applications include reaming precision clearance holes in metal fabrication, automotive components, pump housings, and general machine-shop work where hole quality and size consistency are critical.

Key Features

• 21/64 inch (0.3281 inch) reamer diameter for close-tolerance hole finishing
• High-speed steel construction for durability across ferrous and non-ferrous materials
• 6-flute design promotes smooth cutting action and improved surface finish
• Straight flute geometry suited for through-holes and shorter chipping materials
• Right-hand cutting direction compatible with standard machine spindle rotation
• Bright uncoated finish allows easy inspection and re-sharpening

Compatibility

Designed as a standard chucking reamer for use in any machine spindle accepting a straight-shank tool, including drill presses, lathes, and milling machines equipped with a drill chuck or matching collet.

Installation Notes

Always power down and lock out the machine before installing or removing the reamer from the chuck or collet holder. Secure the straight shank fully within the chuck jaws or collet to the recommended grip depth before tightening. Use appropriate cutting fluid for the workpiece material to extend tool life and improve surface finish. Inspect the reamer for chipping or wear before each use, as a damaged cutting edge will produce an oversize or out-of-round bore.