Harvey Tool RSB2500 Chucking Reamer Letter E 0.2500 in

Product Description

The HARVEY TOOL RSB2500 is a solid carbide chucking reamer designed for precision hole finishing in metalworking and machining applications. Ground to a Letter E diameter of 0.2500 inches, it holds a tight tolerance of +0.0000 to -0.0002 inches, making it suitable for close-tolerance bore work where dimensional accuracy is critical. The reamer features a straight flute configuration with six flutes, a straight cylindrical shank for direct chuck mounting, and a bright uncoated finish. At 4 inches overall length with a 1.125-inch flute length, it fits standard drill press, lathe, and CNC setups. Machinists, toolmakers, and precision shop technicians are the primary installers.

This reamer is part of the HARVEY TOOL Miniature Reamers series, aimed at holemaking applications that require sub-0.30-inch bore diameters. It is suited for through-hole and blind-hole finishing in ferrous and non-ferrous workpieces where surface finish and bore roundness matter. Right-hand cutting direction means it is run in conventional right-hand spindle rotation. The solid carbide construction provides rigidity and wear resistance compared to high-speed steel alternatives, particularly useful at higher spindle speeds or in harder materials.

Key Features

• Letter E diameter: 0.2500 inches with tolerance of +0.0000 to -0.0002 inches for close-fit bore work
• Solid carbide construction for improved rigidity, wear resistance, and dimensional stability
• Six straight flutes with right-hand cutting direction for smooth material removal
• Straight cylindrical shank for direct mounting in drill chucks, collets, or lathe tailstocks
• Bright uncoated finish suitable for a wide range of workpiece materials
• 4 inch overall length with 1.125 inch flute length fits standard machine setups

Compatibility

Designed as an OEM-style replacement or direct-use solid carbide chucking reamer for machine shop applications requiring a Letter E (0.2500 inch) finished bore diameter in drill press, lathe, or CNC machining center setups.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. Secure the straight shank in a precision collet, drill chuck, or floating reamer holder to minimize runout before use. Power down and de-energize the machine spindle completely before loading or unloading the reamer. Do not use this reamer as a drilling tool — the workpiece hole should be pre-drilled undersize before reaming to achieve the specified tolerance.