Osg 300-1040 Chucking Reamer Size 37 Solid Carbide

Product Description

The OSG 300-1040 is a solid carbide chucking reamer designed for precision hole finishing in general machining applications. Built to Series 300D standards, it produces a diameter of 0.1040 inches with a tight tolerance of +0.0001 to +0.0004 inches, making it suitable for work requiring accurate, repeatable bore sizing. The reamer features a straight flute configuration with a right-hand cutting direction, a cylindrical straight shank for chuck mounting, and an uncoated bright finish. At 2.25 inches overall length with a 0.625-inch flute length, it fits compact work envelopes and close-tolerance setups common in precision manufacturing environments.

This reamer is intended for use in machining centers, drill presses, and CNC lathes where accurate final-pass hole sizing is required. Wire size 37 corresponds to a 0.1040-inch diameter, placing it in the smaller end of the decimal inch range for chucking reamers. It is well suited for ferrous and non-ferrous materials in production and job shop environments where dimensional accuracy and finish quality are critical. Licensed machinists and tooling specialists are the typical end users for this style of reamer.

Key Features

• Solid carbide construction provides hardness and wear resistance for consistent performance across production runs
• Diameter tolerance of +0.0001 to +0.0004 inches delivers precision bore sizing
• Four straight flutes with right-hand cut for clean material removal on finish passes
• Bright uncoated finish maintains dimensional accuracy without coating buildup considerations
• Cylindrical straight shank compatible with standard drill chucks and collet systems
• Series 300D designation for standard carbide general machining applications

Compatibility

Designed as a standard carbide chucking reamer for general machining applications requiring wire size 37 (0.1040-inch) hole finishing with a straight shank chuck mount.

Installation Notes

Chucking reamers are installed by qualified machinists following the machine tool manufacturer guidelines for speed, feed, and fixturing. Always ensure the spindle and workpiece are properly secured before operation. Reamers should be used as a finish tool after a drill or boring operation has brought the hole to within a few thousandths of final size. Do not attempt to remove excessive stock with a reamer, as this will reduce tool life and compromise hole geometry.