Cleveland C25516 Chucking Reamer 0.251 in Hss Straight

Product Description

The CLEVELAND C25516 is a straight-flute chucking reamer designed to bring bored or drilled holes to a precise, finished diameter. Ground from high-speed steel (HSS) with a bright, uncoated finish, this reamer delivers clean, accurate sizing in a wide range of ferrous and non-ferrous workpiece materials. It features a 0.2510-inch cutting diameter, six flutes for a smooth surface finish, and a right-hand cutting direction. With an overall length of 6 inches and a straight cylindrical shank, it mounts directly in a drill chuck, collet, or floating reamer holder on a drill press, lathe, or machining center.

This reamer is suited for production and repair machine work where hole-diameter accuracy and finish quality are the primary requirements. The 1.5-inch flute length is appropriate for moderate-depth through-holes and shallow blind holes in typical fixture, tooling, and mechanical component applications. The straight shank allows straightforward setup in standard chuck-style toolholding. Machinists, tool-and-die makers, and maintenance technicians in job shops, manufacturing facilities, and industrial maintenance environments are the primary users of this style of reamer.

Key Features

• 0.2510-inch cutting diameter for accurate final-size finishing of holes in the 0.250-0.299-inch range
• High-speed steel construction provides durability across a broad range of workpiece materials
• Bright, uncoated finish suitable for general-purpose reaming applications
• Six flutes deliver improved surface finish and reduced chatter compared to fewer-flute designs
• Right-hand cut, straight-flute geometry for use in through-holes and shallow blind holes
• Straight cylindrical shank for quick, positive mounting in a chuck or collet holder

Compatibility

Designed as an OEM-style chucking reamer for use in any drill press, lathe tailstock, or machining center equipped with a standard chuck or collet capable of holding a straight cylindrical shank.

Installation Notes

Chucking reamers are installed by machinists and tool-and-die makers; power down and lock out the machine spindle before changing tooling. Secure the straight shank firmly in the chuck or collet to prevent runout, which will degrade hole finish and dimensional accuracy. Use the appropriate cutting fluid for the workpiece material and do not run a reamer in reverse, as this will damage the cutting edges.