Scientific Cutting Tools HB150A Helical Boring Bar

Product Description

The SCIENTIFIC CUTTING TOOLS HB150A is a helical boring bar designed for precision internal turning and boring operations in tight-diameter applications. Machined from submicron-grade solid carbide and finished with an AlTiN+ coating, this bar delivers hardness and thermal resistance suited to dry and high-speed cutting conditions. It features a right-hand cutting direction and a minimum bore diameter of 0.15 inches, making it suitable for small-bore work where rigidity and concentricity are critical. The 3/16-inch shank diameter keeps the tool compact while maintaining the stiffness needed to control chatter in deep-bore passes.

The HB150A is intended for use in CNC lathes, turning centers, and manual lathes equipped with appropriate boring bar toolholders. It is a fit for machinists, toolroom operators, and production shops working in ferrous and non-ferrous materials where fine surface finish and tight tolerances on internal diameters are required. The short 1.5-inch overall length suits bench-top and sub-spindle applications where clearance is limited.

Key Features

• Submicron solid carbide construction for rigidity and wear resistance in small-bore applications
• AlTiN+ finish coating improves thermal resistance and extends tool life in dry or high-speed cuts
• Helical boring bar geometry reduces cutting forces and improves chip evacuation in tight bores
• Right-hand cutting direction for standard CNC lathe and turning center setups
• 0.15-inch minimum bore diameter enables access to very small internal diameters
• 3/16-inch shank diameter provides a compact, rigid platform for precision boring work

Compatibility

Designed for use with standard boring bar toolholders accepting a 3/16-inch shank diameter on CNC lathes and manual turning equipment.

Installation Notes

Installation is performed by qualified machinists or toolroom personnel. Power down and lock out the machine spindle before inserting or removing the boring bar from the toolholder. Ensure the shank is fully seated and clamped to the toolholder manufacturer's specification before beginning any cut. Inspect the AlTiN+ coating and cutting edge for chips or wear prior to each use, as carbide tooling can fail without visible warning if damaged.