BSF: Back Spotfacing Tool

BSF: Back Spotfacing Tool for High-Efficiency CNC Machining

Performs spotfacing in a single operation to reduce cycle time and improve productivity.

The HEULE BSF tool delivers precision back spotfacing in a single, automated operation—eliminating the need to rotate the workpiece and streamlining production.
Engineered for CNC machining, the BSF combines Swiss-made quality with innovative design to achieve high-performance counterboring and back spotfacing results.

Widely used in aerospace, automotive, energy, and precision manufacturing, the BSF tool ensures accurate surface finishes, shorter cycle times, and maximum repeatability—even in demanding, high-volume production environments.

Key Features & Advantages

The HEULE BSF back spotfacing tool delivers exceptional precision, repeatability, and efficiency for CNC machining. Designed for single-operation performance, it removes the need to rotate the workpiece, ensuring faster setup and reduced cycle times.

Activation Options

Available in three configurations to suit a variety of machine environments:

• Air Activation – Uses compressed air to extend and retract the blade. Ideal for machines without through-coolant capabilities. (Minimum 80 psi required.)
• Coolant Activation – Uses through-spindle coolant pressure to control blade movement and chip evacuation. (Minimum 280 psi recommended for optimal performance.)
• Manual Activation – For machines without air or coolant systems. The blade is extended and retracted manually — ideal for open machines, large boring mills, or specialized setups.

Peformance Highlights

• Single-Operation Spotfacing – Performs in one automatic cycle, eliminating manual rotation or secondary machining.
• Carbide-Coated Blades – Replaceable, long-life blades provide consistent surface finishes and cost-effective operation.
• Advanced Coolant Flow Design – Optimized channels ensure clean chip evacuation and consistent cutting performance.
• CNC Compatibility – Works seamlessly with modern CNCs supporting through-spindle coolant of 300 psi or higher.
• Versatility in Orientation – Functions equally well in both vertical and horizontal setups.
• Maintenance Simplicity – Modular components and quick blade replacement minimize downtime.
• Availability – Ready for immediate delivery in standard sizes from 6.5 mm to 20.5 mm (0.256"–0.807"), with custom options up to 40 mm available on request.