Harvey Tool RSB1240 Chucking Reamer 0.124 in Solid Carbide

Product Description

The HARVEY TOOL RSB1240 is a solid carbide chucking reamer designed for precision hole finishing in tight-tolerance applications. With a reamer diameter of 0.124 inches and a tolerance of +0.0000 to -0.0002 inches, this tool delivers consistent, repeatable sizing in drilled or bored holes. The straight flute geometry and right-hand cutting direction make it well suited for through-hole finishing in a variety of workpiece materials. Machinists and toolroom technicians install this reamer using a standard chuck or collet setup on CNC machining centers, manual mills, or drill presses. At 3 inches overall length with a 3/4-inch flute length, it fits standard toolholding without extended reach concerns.

The RSB1240 belongs to Harvey Tool's Miniature Reamers series, targeting small-diameter precision work in the 0.1000 to 0.1499 inch diameter range. It is appropriate for holemaking and threading operations in production and toolroom environments where hole size and finish are critical. The straight cylindrical shank seats directly in ER collet chucks or drill chucks without adapter sleeves. This reamer is used in industries where close-tolerance bores are required, including aerospace, medical device, and precision mechanical assembly. It does not feature coolant-through capability, so cutting fluid must be applied externally during operation.

Key Features

• Solid carbide construction for wear resistance and dimensional stability in hard or abrasive materials
• Diameter tolerance of +0.0000 to -0.0002 inches for precision bore sizing
• 4 straight flutes with right-hand cutting direction for smooth, consistent chip evacuation
• Bright/uncoated finish — compatible with a wide range of cutting fluids without coating interaction
• Straight cylindrical shank fits standard ER collet and drill chuck toolholding
• Part of the Miniature Reamers series, covering the 0.1000 to 0.1499 inch diameter range

Compatibility

Designed as a miniature chucking reamer for precision holemaking and threading operations requiring close-tolerance bore finishing in the 0.1000 to 0.1499 inch diameter range.

Installation Notes

Installation and operation should be performed by qualified machinists or toolroom technicians. Power down and lock out the machine spindle before mounting or removing the reamer from the toolholder. Seat the straight cylindrical shank fully and evenly in the collet or chuck to prevent runout. Apply cutting fluid externally during reaming, as this tool does not support coolant-through delivery.