Osg 300-5000 Chucking Reamer 1/2 in Solid Carbide

Product Description

The OSG 300-5000 is a solid carbide chucking reamer designed for precision hole finishing in general machining applications. Built to Series 300D standards, it produces accurate, smooth bores with a tight diameter tolerance of +0.0001 to +0.0005 inches. The reamer measures 0.5000 inches in diameter with a 4-inch overall length and a 1-1/2-inch flute length. Its six straight flutes and right-hand cutting direction make it well suited for CNC machining centers, drill presses, and manual lathes where consistent bore quality is required. The bright, uncoated finish preserves the carbide edge geometry without added coating variables.

This chucking reamer is intended for machine-tool use in production and job-shop environments. The straight cylindrical shank seats directly in collet chucks or drill chucks without modification. It is appropriate for finishing pre-drilled holes in ferrous and non-ferrous materials where dimensional accuracy and surface finish are critical. The part is sold individually and is suited for both production runs and single-part work where a standard carbide reamer meets tolerance requirements.

Key Features

• Solid carbide construction for rigidity and wear resistance in demanding cuts
• Diameter tolerance of +0.0001 to +0.0005 inches for tight, repeatable bore sizing
• Six straight flutes for smooth chip evacuation and consistent finish
• Right-hand cutting direction, compatible with standard spindle rotation
• Bright, uncoated finish suitable for a broad range of workpiece materials
• Straight cylindrical shank for direct mounting in collet or drill chucks

Compatibility

Designed as a standard OEM-style chucking reamer for general machining applications requiring a 0.5000-inch finished bore diameter in machine-tool setups.

Installation Notes

Installation should be performed by a qualified machinist or toolroom professional. Secure the straight shank firmly in a collet chuck or drill chuck before use, and verify runout with a dial indicator before cutting. Power down and lock out the machine spindle before changing or adjusting the reamer. Do not use this tool as a drill to remove stock; ream only pre-drilled or bored holes that are already within recommended pre-ream allowance for carbide reamers.