Scientific Cutting Tools HB100LFA Helical Boring Bar

Product Description

The SCIENTIFIC CUTTING TOOLS HB100LFA is a right-hand helical boring bar machined from submicron-grade solid carbide and finished with an AlTiN+ coating. It handles a minimum bore diameter of 0.100 inches and a maximum bore depth of 0.625 inches, making it well suited for tight, precise internal turning operations where rigidity and tool life are critical. The 1/8-inch shank diameter and 2.0-inch overall length keep the profile compact for small-bore work. Machinists and CNC operators working in job shops, tool rooms, and production environments will find this bar effective on ferrous and hardened materials where conventional high-speed steel tooling falls short.

This boring bar targets small-diameter internal bores in precision machining applications. It is appropriate for use on CNC lathes, manual lathes, and mill-turn centers where bore tolerances are tight and surface finish requirements are demanding. The helical flute geometry and AlTiN+ coating support dry or minimal-lubrication cutting strategies commonly used in high-speed finishing passes on steel, stainless, and cast iron.

Key Features

• Submicron-grade solid carbide construction for superior hardness and wear resistance
• AlTiN+ finish coating extends tool life in high-temperature cutting conditions
• Helical boring bar geometry provides improved chip evacuation in confined bores
• Right-hand cutting direction for standard lathe and turning center setups
• 0.100 inch minimum bore diameter enables access to very small internal features
• Compact 1/8 inch shank diameter fits standard small-bore tool holders and collet chucks

Compatibility

Designed as an OEM-style replacement or direct-fit tooling solution for small-bore internal turning applications requiring a 1/8-inch shank helical boring bar with right-hand cut geometry.

Installation Notes

Installation and setup should be performed by a qualified machinist familiar with lathe or turning center tooling procedures. Ensure the machine spindle is fully stopped and the machine is in a safe lockout state before mounting or adjusting any tooling. Secure the shank firmly in a compatible tool holder or collet to the holder manufacturer's specified clamping procedure to prevent bar deflection during cutting. Verify bore depth clearance against the 0.625-inch maximum depth rating before beginning any machining pass.