Osg 300-0866 Chucking Reamer 2.2mm Solid Carbide

Product Description

The OSG 300-0866 is a solid carbide chucking reamer designed for precision hole finishing in general machining applications. With a reamer diameter of 2.2 mm (0.0866 inches) and a tight tolerance of +0.0001 to +0.0004 inches, this tool produces accurate, smooth bores where dimensional control is critical. The 4-flute straight configuration provides stable cutting action in through and blind holes. At 50 mm overall length with a 12 mm flute length and a straight cylindrical shank, it is sized for use in CNC machining centers, manual mills, and drill presses with standard collet or chuck toolholding. Machinists and tool-and-die professionals are the primary users.

This reamer is suited for light-stock-removal finishing passes in ferrous and non-ferrous materials across production and job-shop environments. Its bright, uncoated finish makes it appropriate for applications where coating interaction with the workpiece material is a concern. Typical use cases include finishing pre-drilled or bored holes to close tolerance in steel, aluminum, brass, and similar engineering materials. The Series 300D designation places it within OSG standard carbide reamer offerings for general-purpose work.

Key Features

• 2.2 mm (0.0866 inch) diameter with tolerance of +0.0001 to +0.0004 inches for close-tolerance hole finishing
• Solid carbide construction for rigidity and wear resistance in demanding materials
• 4-flute straight geometry for stable, consistent material removal
• Bright, uncoated finish suitable for a wide range of workpiece materials
• Straight cylindrical shank compatible with standard collets and drill chucks
• Right-hand cutting direction; no coolant-through requirement

Compatibility

Designed as an OEM-style general-purpose chucking reamer for use in standard collet chucks and drill chucks accepting straight cylindrical shanks; suitable for CNC and manual machine tools requiring a 2.2 mm finishing reamer.

Installation Notes

Installation and use of chucking reamers should be performed by qualified machinists familiar with proper toolholding and speeds and feeds for carbide cutting tools. Ensure the machine spindle and toolholder are fully powered down and at rest before inserting or removing the reamer. Secure the straight shank firmly in a collet or drill chuck to minimize runout, which directly affects hole tolerance and tool life. Reamers should only be used to remove a small finishing allowance from a pre-drilled or bored hole; using a reamer to remove excess stock will damage the cutting edges.