Titan Usa TC87474 Chucking Reamer 0.3930 in Solid Carbide

Product Description

The TITAN USA TC87474 is a solid carbide chucking reamer designed for precision hole finishing in metalworking and machining applications. With a reamer diameter of 0.3930 inches and a diameter tolerance of +0.0003 to -0.0000 inches, this tool holds tight tolerances required for close-fit bores, dowel holes, and precision assemblies. The 6-flute straight-flute geometry delivers smooth, consistent stock removal with a right-hand cutting direction. At 3.5 inches overall length with a 1.25-inch flute length and a straight-cylindrical shank diameter of 0.3930 inches, it mounts directly in standard drill chucks or collet holders without adapters. The bright, uncoated carbide surface is suited for a broad range of ferrous and non-ferrous workpiece materials.

This chucking reamer is used in machine shop, toolroom, and production floor environments wherever final bore sizing and surface finish are critical. Typical applications include finishing through-holes and blind holes in steel, cast iron, aluminum, and similar materials on drill presses, lathes, CNC machining centers, and manual mills. It is well suited for low-to-moderate volume production runs and toolroom work where dimensional accuracy is non-negotiable. Licensed machinists and CNC operators are the primary users. The TC87474 belongs to the TITAN USA TC87 series, which covers the 0.3500 to 0.3999-inch reamer diameter range.

Key Features

• Solid carbide construction for rigidity and wear resistance compared to HSS alternatives
• 0.3930-inch reamer diameter with tolerance of +0.0003 to -0.0000 inches for tight bore control
• 6 straight flutes with right-hand cutting direction for smooth material removal
• Straight-cylindrical shank at 0.3930 inches diameter for direct chuck or collet mounting
• Bright, uncoated finish — suitable for use with or without cutting fluid
• No coolant-through design; simple setup with conventional flood or mist coolant

Compatibility

Designed as a standard chucking reamer for use in drill chucks, ER collet holders, and similar straight-shank toolholding systems on drill presses, lathes, and machining centers. Part of the TITAN USA TC87 series covering the 0.3500 to 0.3999-inch decimal inch reamer diameter range.

Installation Notes

Installation and use should be performed by qualified machinists familiar with reaming operations and machine tool safety procedures. Ensure the machine spindle is fully stopped and locked out before mounting or removing the reamer. Secure the straight-cylindrical shank firmly in a properly sized chuck or collet to prevent runout, which is the leading cause of oversize or bell-mouthed bores. Always pre-drill or bore the hole to the appropriate undersize before reaming, and apply appropriate cutting fluid for the workpiece material to extend tool life and improve surface finish.