Osg 300-4062 Chucking Reamer 13/32 in Solid Carbide

Product Description

The OSG 300-4062 is a solid carbide chucking reamer designed for precision hole finishing in general machining applications. Measuring 0.4062 inches in diameter with a 3.5-inch overall length and a 1.25-inch flute length, this reamer holds a tight diameter tolerance of plus 0.0001 to plus 0.0005 inches, making it suitable for close-tolerance bore work. The six-flute straight geometry and bright uncoated finish are optimized for accurate sizing in a wide range of workpiece materials. Machinists and toolroom technicians use this reamer when a drilled or bored hole needs to be brought to a precise final diameter with a quality surface finish.

The 300-4062 fits standard CNC machining centers, manual lathes, and drill presses equipped with a chuck or collet holder capable of accepting a straight cylindrical shank. It is suited for through-hole and blind-hole reaming operations in production and toolroom environments where dimensional accuracy is critical. This reamer is part of the OSG 300D series, which covers standard carbide reamers intended for general machining use across ferrous and non-ferrous materials.

Key Features

• Solid carbide construction provides rigidity and wear resistance for consistent hole sizing
• Six straight flutes deliver smooth cutting action and even chip evacuation
• Diameter tolerance of plus 0.0001 to plus 0.0005 inches supports close-tolerance finishing work
• Straight cylindrical shank accepts standard chucks and collet holders without special tooling
• Bright uncoated finish suits a broad range of base materials without coating compatibility concerns
• Compact 3.5-inch overall length fits standard spindle setups with minimal overhang

Compatibility

Designed as a standard chucking reamer for use in CNC machining centers, manual lathes, and drill presses with a chuck or collet capable of holding a straight cylindrical shank. Suitable for general machining applications requiring a 0.4062-inch finished bore diameter.

Installation Notes

This reamer is installed and operated by qualified machinists or toolroom technicians. Secure the straight shank firmly in a precision chuck or collet before use, and verify runout with an indicator to avoid oversize or bell-mouthed holes. Always reduce spindle speed relative to drilling and apply appropriate cutting fluid to extend tool life and improve surface finish. Do not use this reamer as a drill — it is designed only for finishing pre-drilled or bored holes that are already close to final diameter.