Threading Extension Rod FANAR M8 x 120 mm PBNA 6.3

Threading extension rod FANAR M8 x 120 mm PBNA 6.3 is a precision adapter designed to extend the reach of tapping and thread-cutting tools for M8 metric threads. With a 120 mm length and PBNA 6.3 mounting interface, this extension rod enables access to deep, recessed, or otherwise difficult-to-reach threaded holes while maintaining alignment and tool stability. It is intended for use in metalworking, maintenance, and assembly operations where increased reach or altered tool geometry is required.

Advantages

The extension rod provides a rigid, accurately machined connection between the tap holder and the cutting tool, reducing runout and improving thread quality. Its standardized PBNA 6.3 interface ensures compatibility with holders and adapters designed for this mounting, simplifying setup and tool changes. By extending tool reach without sacrificing concentricity, the rod helps maintain consistent cutting forces and prolongs tap life in hard-to-access locations.

Suitable for

• Extending tapping tools to reach deep or recessed M8 threaded holes
• Repair and maintenance tasks in machinery and equipment
• Assembly operations requiring access to confined or obstructed thread locations
• Metalworking shops and toolrooms where flexible tooling setups are needed

Key specifications

• Thread size compatibility: M8 metric threads
• Overall length: 120 mm
• Mounting interface: PBNA 6.3 compatible
• Function: extension adapter for tapping and thread-cutting tools
• Applicable materials: typical metalworking materials (steel, aluminum, non-ferrous alloys)

How to use

Install the extension rod between the tap holder and the tap or thread-cutting tool using the PBNA 6.3 interface, ensuring a secure and concentric fit. Align the assembly with the workpiece and proceed with tapping operations at the recommended speeds and cutting conditions for the workpiece material. Periodically check tool alignment and tightness during use and retract the tap carefully to avoid thread damage when finishing the hole.

Usage recommendations

Use appropriate cutting fluid and select speeds and feeds suitable for the workpiece material to reduce heat and wear. Inspect the extension rod for wear or damage before each use, and replace if concentricity or fit is compromised. For best results in blind or deep holes, use proper pecking or withdrawal techniques to clear chips and prevent tap breakage.