Scientific Cutting Tools BB184 Radial Relief Boring Bar

Product Description

The SCIENTIFIC CUTTING TOOLS BB184 is a radial relief boring bar designed for precision internal boring operations on small-diameter features. Machined from submicron-grade solid carbide, this bar delivers the rigidity and wear resistance required for tight-tolerance work in steel, stainless, cast iron, and non-ferrous materials. The right-hand cutting direction suits standard CNC and manual lathe setups. It accepts a minimum bore diameter of 0.185 inches and a maximum bore depth of 0.5 inches, making it well suited for shallow, close-tolerance bores where rigidity and tool deflection are critical concerns. The uncoated carbide surface is ready to run as delivered.

This boring bar is used in precision machining environments including tool rooms, production shops, and job shops running CNC lathes or manual engine lathes. Its 3/16-inch shank diameter fits standard small-bore toolholders and quick-change systems designed for that shank size. Typical applications include finishing internal diameters, cleaning up drilled holes, and producing close-tolerance bores in small workpieces or miniature components. It is installed by machinists and CNC operators working to blueprint tolerances.

Key Features

• Radial relief geometry reduces cutting forces on small-diameter bores
• Submicron solid carbide construction for superior rigidity and edge retention
• Minimum bore diameter of 0.185 inches for tight internal features
• Maximum bore depth of 0.5 inches suitable for shallow through and blind bores
• Right-hand cut for standard lathe rotation
• Uncoated finish - no additional prep required before use

Compatibility

Designed to fit toolholders accepting a 3/16-inch shank diameter. Confirm toolholder bore size and clamping method before installation. No specific machine model compatibility was provided by the manufacturer for this part.

Installation Notes

Installation is performed by a qualified machinist or CNC operator. Power down and lock out the machine spindle before mounting or removing the boring bar. Ensure the shank is fully seated and clamped securely in the toolholder to minimize overhang and reduce deflection. Verify bore alignment and starting diameter before beginning the cut to avoid tool breakage on this small-diameter bar.