Ceradex E16X-STUPL11-20 Internal Boring Bar

The Ceradex E16X-STUPL11-20 is a precision internal boring bar designed for accurate internal turning, profiling, and finishing operations on CNC and conventional lathes. Manufactured from high-strength alloy steel, this toolholder offers excellent rigidity and vibration resistance, helping maintain dimensional accuracy and improved surface finishes during internal machining tasks.

Designed with the STUPL holder style, this boring bar securely clamps size 11 carbide inserts to provide stable and reliable cutting performance. The cylindrical shank and compact head geometry allow the tool to access medium internal diameters while maintaining strong cutting stability, making it ideal for general engineering, production machining, and maintenance applications where reliable internal turning is required.

Key Features & Benefits

• Precision internal boring bar for internal turning and finishing operations
• STUPL holder style designed for size 11 carbide inserts
• Rigid steel construction for improved machining stability
• Secure insert clamping for reliable cutting performance
• Optimised geometry for smooth chip flow and improved surface finish
• Suitable for CNC lathes and conventional turning machines
• Ideal for profiling, boring, and internal finishing applications

Technical Specifications

• Brand: Ceradex
• Model: E16X-STUPL11-20
• Item Number: THC07765
• Product Type: Internal Turning Toolholder / Boring Bar
• Holder Style: STUPL
• Insert Size: 11
• Shank Diameter: 16 mm
• Minimum Bore Diameter: 20 mm
• Hand: Left Hand
• Material: Steel

Ceradex cutting tools are engineered to deliver dependable performance in demanding machining environments. Their boring bars and turning toolholders are designed to provide strong insert retention, improved cutting stability, and consistent machining results across a wide range of internal turning applications. Internal boring bars such as this are commonly used for precision internal turning, profiling, and finishing operations where stability and accuracy are critical.