Cleveland C25360 Chucking Reamer 0.1855 in Hss Straight Flute

Product Description

The CLEVELAND C25360 is a straight-flute chucking reamer ground from high-speed steel (HSS) and designed to bring drilled or bored holes to a precise finished diameter. With a nominal diameter of 0.1855 inches and a dowel pin tolerance of 0.0000 to -0.0020 inches, this reamer is built for applications where a controlled interference or transition fit is required. The 6-flute geometry distributes cutting load evenly, reducing chatter and improving surface finish in through and blind holes. Overall length is 4.5 inches, with a 1.125-inch flute length and a straight shank that seats securely in standard chucks or collets.

This reamer is suited for use in machine shops, maintenance facilities, and production environments where repeatable hole sizing is critical. Its dowel pin reamer designation makes it a go-to choice when fitting precision dowel pins into mating components — a task common in fixture building, die and mold work, and mechanical assembly. The bright, uncoated finish is compatible with a wide range of cutting fluids and works well in ferrous and non-ferrous materials. Right-hand cutting direction is standard for conventional machine setups.

Key Features

• Dowel pin reamer ground to 0.1855 inches with a tolerance of 0.0000 to -0.0020 inches for precision fit work
• High-speed steel construction provides toughness and wear resistance across a broad range of workpiece materials
• 6-flute straight design for smooth cutting action and consistent surface finish
• Straight shank compatible with standard drill chucks, ER collets, and machine tool holders
• Bright uncoated finish works with oil, soluble, and synthetic cutting fluids
• Right-hand cut suits conventional CNC, drill press, and manual lathe setups

Compatibility

Designed as an OEM-style replacement or direct substitute chucking reamer for any machine tool setup requiring a 0.1855-inch nominal diameter straight-shank reamer, including CNC machining centers, drill presses, and manual lathes.

Installation Notes

Chucking reamers should be installed by a qualified machinist or toolroom technician familiar with cutting tool setup and machine operation. Secure the straight shank in a properly sized collet or drill chuck with adequate grip length before use. Always apply cutting fluid appropriate for the workpiece material to extend tool life and maintain dimensional accuracy. Never run a reamer in reverse, as this dulls cutting edges rapidly.