Osg 300-0635 Chucking Reamer Size 52 Solid Carbide

Product Description

The OSG 300-0635 is a solid carbide chucking reamer designed for precision hole finishing in general machining applications. Built to wire gauge size 52, it produces a finished bore diameter of 0.0635 inches with a tolerance of +0.0001 to +0.0004 inches, making it suitable for tight-tolerance work in small-diameter bores. The four-flute, straight-flute geometry provides clean, consistent material removal in a right-hand cutting direction. With an overall length of 1.5 inches and a flute length of 0.375 inches, this reamer is sized for compact workpieces and short through-holes. It runs on a straight cylindrical shank and is supplied with a bright, uncoated finish.

The OSG 300-0635 is intended for use in machine shop environments where small-diameter bore sizing is required. It is well suited to CNC machining centers, drill presses, and manual mills where a chucking-style straight shank can be held in a collet or drill chuck. Typical applications include reaming pilot holes, dowel pin bores, and precision location features in ferrous and non-ferrous workpieces. This is a standard-tolerance reamer from the OSG 300D series, appropriate for general production and job-shop use.

Key Features

• Wire gauge size 52 — finished bore diameter of 0.0635 inches
• Solid carbide construction for rigidity and wear resistance in small-diameter reaming
• Four straight flutes with right-hand cut for smooth, consistent material removal
• Diameter tolerance of +0.0001 to +0.0004 inches for tight-fit bore applications
• Bright uncoated finish — part of the OSG 300D standard carbide reamer series
• Straight cylindrical shank compatible with collet chucks and standard drill chucks

Compatibility

Designed as an OEM-style replacement and standard production reamer for general machining applications requiring a size 52 wire gauge bore diameter.

Installation Notes

Chucking reamers should be installed by a qualified machinist following standard machine tool safety procedures. Secure the shank fully in a collet or chuck before operation and verify runout before cutting. Always reduce spindle speed significantly compared to drilling, and apply cutting fluid appropriate to the workpiece material to extend tool life and improve finish quality. Inspect the bore diameter with a calibrated gauge pin set after reaming to confirm tolerance compliance.