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The OSG 300-1820 is a solid carbide chucking reamer designed for precision hole finishing in general machining applications. Built to wire size 14 with a decimal diameter of 0.1820 inches, this reamer holds a tight tolerance of +0.0001 to +0.0004 inches, making it suitable for applications where bore accuracy is critical. The straight flute geometry and right-hand cutting direction make it a reliable choice for finishing pre-drilled holes in a variety of workpiece materials. With an overall length of 2.75 inches and a flute length of 0.875 inches, the 300-1820 fits standard machine tool chucks and collets on CNC machining centers, drill presses, and lathes. Machinists and tool and die professionals are the primary users of this tool.
The OSG 300-1820 is intended for general machining environments where precise hole sizing and smooth bore finish are required. The uncoated bright finish suits a broad range of materials commonly encountered in production and maintenance machining. This reamer is sized for small-diameter work in the 0.1500 to 0.1999 inch diameter range and is part of the OSG 300D series, which targets standard carbide reaming applications. It is well suited for job shops, manufacturing facilities, and toolrooms that require consistent, repeatable results on small-bore holes.
Designed as an OEM-style replacement and standard tooling option within the OSG 300D series for general machining applications requiring a wire size 14 solid carbide chucking reamer.
This reamer is installed and operated by machinists using standard machine tool chucks or collet holders on CNC machines, drill presses, or lathes. Always bring the spindle to a complete stop before changing or seating tools. Ensure the shank is fully seated and properly clamped before operation. Use appropriate cutting fluid or coolant for the workpiece material to extend tool life and maintain bore quality.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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