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The HARVEY TOOL RSB0620 is a solid carbide chucking reamer designed for precision hole finishing in miniature applications. Built for right-hand cutting with four straight flutes, this reamer holds a diameter tolerance of +.0000 to -.0002 inches, making it well-suited for tight-tolerance bores where a consistent, accurate finish is critical. The straight-cylindrical shank seats directly in standard drill chucks or collet holders. At 2 inches overall length with a 7/16-inch flute length, it is optimized for shallow, small-diameter holes where rigidity and concentricity matter most.
This reamer is intended for small-bore finish reaming operations across machine shops, tool rooms, and precision manufacturing environments. The miniature series designation covers the 0.0500 to 0.0999 inch diameter range, making the RSB0620 a practical choice for reaming holes in instrument components, medical hardware, small fixtures, and similar applications requiring controlled sub-0.1-inch bores. It is typically run on CNC machining centers, manual mills, or drill presses with appropriate spindle speed and cutting fluid for the workpiece material.
Designed as a miniature chucking reamer for finish reaming 0.0620 inch diameter holes; fits standard straight-bore drill chucks and ER collet holders that accommodate the corresponding shank diameter.
Chucking reamers should be installed by a machinist or tooling technician using a properly sized collet or drill chuck to ensure runout is minimized. Power down the spindle completely and lock the machine before changing tooling. Always apply cutting fluid appropriate to the workpiece material and run at recommended surface footage for carbide reamers - excessive feed rate or insufficient lubrication will damage the cutting edges. Do not use this reamer to remove excess stock; pre-drill or bore holes to within approximately 0.001 to 0.002 inches of final diameter before reaming.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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