Scientific Cutting Tools HB210A Back Boring Bar Solid Carbide

Product Description

The SCIENTIFIC CUTTING TOOLS HB210A is a submicron solid carbide back boring bar designed for precision internal back boring operations on CNC lathes and machining centers. With a minimum bore diameter of 0.21 inches and a maximum bore depth of 1 inch, this tool handles tight-clearance back boring where conventional boring bars cannot reach. The 3/16-inch shank diameter and 1.5-inch overall length make it well suited for small-bore applications requiring rigidity and dimensional accuracy. Submicron carbide grade construction provides superior wear resistance and edge retention compared to standard carbide, supporting extended tool life in production environments.

This back boring bar is intended for use in precision machining environments including job shops, production machine shops, and manufacturing facilities running Swiss-style, CNC lathe, or milling center operations. It is configured for right-hand cutting direction and is best suited for applications involving small-diameter internal features that require a back bore pass, such as undercuts, relief grooves, and reverse counterbores in ferrous and non-ferrous workpieces.

Key Features

• Submicron solid carbide construction for superior hardness and wear resistance
• Minimum bore diameter of 0.21 inches enables tight-clearance back boring
• Maximum bore depth of 1 inch suits a range of small internal feature geometries
• Right-hand cutting direction for standard spindle rotation setups
• 3/16-inch shank diameter for compatibility with small-bore tool holders
• Compact 1.5-inch overall length reduces overhang and improves rigidity

Compatibility

Designed as an OEM-style replacement or direct-use back boring bar for small-bore CNC lathe and machining center applications requiring a 3/16-inch shank and right-hand cutting geometry. Part of the HB2 series from SCIENTIFIC CUTTING TOOLS.

Installation Notes

Installation and use of this boring bar should be performed by qualified machinists or tooling technicians. Ensure the machine spindle is fully stopped and the tool holder is clean and free of debris before seating the shank. Verify shank clamp torque specifications per the tool holder manufacturer guidelines. Do not exceed the rated maximum bore depth, as overextension increases deflection and risk of tool breakage in submicron carbide tooling.