Osg 300-0625 Chucking Reamer 1/16 in Solid Carbide

Product Description

The OSG 300-0625 is a solid carbide chucking reamer designed for precision hole finishing in general machining applications. With a 1/16 inch (0.0625 inch) diameter and a diameter tolerance of +0.0001 to +0.0004 inches, this reamer delivers tight, repeatable sizing in finished bores. The straight flute geometry and right-hand cutting direction make it well suited for through-hole and short blind-hole reaming in a variety of workpiece materials. Overall length is 1-1/2 inches with a 3/8 inch flute length. The straight cylindrical shank mounts directly in standard collets or chucks. This is a machine shop tool installed and operated by machinists and CNC operators.

The 300-0625 is used in production and job-shop machining environments where close-tolerance hole sizing is required. Its compact 1/16 inch diameter makes it appropriate for small-diameter bore finishing in components such as instrument parts, medical hardware, tooling fixtures, and precision assemblies. The bright, uncoated finish suits a broad range of base materials where coating interaction is a concern. It runs in vertical machining centers, drill presses, and CNC lathes equipped with appropriate collet toolholding. A four-flute configuration balances chip clearance with surface finish quality at this diameter range.

Key Features

• Solid carbide construction for rigidity and wear resistance at small diameters
• Diameter tolerance of +0.0001 to +0.0004 inches for precise bore sizing
• Four straight flutes with right-hand cutting direction
• Bright, uncoated finish compatible with a wide range of workpiece materials
• Straight cylindrical shank for use with standard collets or drill chucks
• OSG 300D series, designed for general machining applications

Compatibility

Designed as an OEM-style chucking reamer for general machining applications in the 0.0500 to 0.0999 inch reamer diameter range, per OSG 300D series specifications.

Installation Notes

Installation is performed by a machinist or CNC operator. Secure the straight cylindrical shank firmly in a collet or drill chuck before use; verify runout before cutting to maintain tolerance. Power down and lock out the machine before changing or inspecting the tool. Do not hand-turn a reamer in reverse, as this can damage the cutting edges.