Harvey Tool RSB2490-C3 Chucking Reamer 0.249in Solid Carbide

Product Description

The HARVEY TOOL RSB2490-C3 is a solid carbide chucking reamer designed for precision hole finishing in demanding machining applications. With a reamer diameter of 0.249 inches and a tight tolerance of +0.0002 to -0.0000 inches, this tool delivers consistent, accurate bore sizing in a single pass. The 4-inch overall length and 1.125-inch flute length make it well suited for shallow-to-moderate depth finishing cuts. An AlTiN coating provides elevated heat and wear resistance, extending tool life in ferrous and hard materials. Machinists and tool-and-die professionals use this reamer where hole quality and dimensional accuracy are critical.

This reamer is part of the Harvey Tool Miniature Reamers series, designed for holemaking operations where small-diameter precision is required. It is suited for CNC machining centers, drill presses, and manual mills handling close-tolerance work in steel, stainless, cast iron, and similar materials. The straight shank allows direct mounting in standard chucks or collets without additional adapters. This tool is intended for finish reaming of pre-drilled or bored holes where a smooth, accurately sized bore is the final objective.

Key Features

• Solid carbide construction for rigidity and long tool life in hard or abrasive materials
• AlTiN coating for heat resistance and reduced wear in ferrous alloys and hardened steels
• 6-flute straight configuration for smooth cutting action and consistent finish on the bore wall
• Diameter tolerance of +0.0002 to -0.0000 inches for tight, repeatable hole sizing
• Straight cylindrical shank for direct chuck or collet mounting
• Right-hand cutting direction compatible with standard spindle rotation

Compatibility

Part of the Harvey Tool Miniature Reamers series for holemaking and threading applications. Designed for use in CNC and manual machining setups accepting a straight-cylindrical shank in the 0.2000 to 0.2499 inch diameter range.

Installation Notes

Installation is performed by qualified machinists. Secure the straight shank firmly in a precision collet or drill chuck rated for the spindle speed being used, and verify runout before cutting. Always ensure the workpiece is rigidly clamped and the hole has been pre-drilled or bored to the appropriate undersize before reaming. Do not use this tool as a drill; reaming is a finishing operation only and requires an existing pilot hole.