Ceradex STUPL1612B-09EH Internal Turning Boring Bar – THC07661

The Ceradex STUPL1612B-09EH is a precision internal turning boring bar designed for accurate boring, internal profiling, and finishing operations. With its compact cylindrical shank and rigid construction, this toolholder provides excellent stability when machining small to medium internal diameters, making it ideal for precision CNC and manual lathe applications.

Engineered for use with positive triangular inserts (TPMT style – size 09), this boring bar offers smooth cutting action, reduced cutting forces, and improved surface finish. Its slim design allows easy access into confined bores while maintaining rigidity, ensuring reliable performance in steel and general engineering materials.

Key Features & Benefits

• Designed for internal turning, boring, and profiling operations
• Compatible with TPMT 09 inserts for precision internal machining
• Compact boring bar design for access to smaller bore diameters
• Positive rake geometry reduces cutting forces and improves finish
• Rigid steel shank minimises vibration and enhances stability
• Ideal for CNC and manual lathe applications
• Reliable insert clamping for consistent cutting performance
• Suitable for general engineering and steel machining

Technical Specifications

• Part Number: STUPL1612B-09EH
• Item Number: THC07661
• Product Type: Internal Turning Boring Bar
• Shank Diameter: 12 mm
• Holder Style: STUPL
• Insert Type: TPMT (Triangle)
• Insert Size: 09
• Cutting Direction: Left Hand
• Application: Internal turning / boring
• Material: Steel
• Internal Coolant: No

Ceradex internal turning tools are built for dependable machining performance, offering consistent accuracy, secure insert positioning, and long tool life. Designed for professional workshop environments, they provide a practical and reliable solution for precision boring applications.