Metric Thread Tap M20x1.25 FANAR N1-121001-0204 — M20 x 1.25 metric tap

FANAR metric internal thread tap M20x1.25 is a precision cutting tool for producing M20 x 1.25 metric threads in through or blind holes. The tap is intended for manual or machine tapping and is suitable for use in workshop, maintenance and manufacturing environments. It is designed to cut standard metric pitch threads in steel and other common machinable metals, providing consistent thread geometry when used with appropriate tapping parameters and cutting fluid.

Advantages

The tap provides accurate thread form and repeatable results across multiple holes when correct speeds and feeds are applied. Its geometry is optimized for general-purpose cutting in steels and similar materials, balancing chip evacuation and cutting stability. The tool supports both hand and machine tapping, enabling flexible use in repair shops and production settings.

Suitable for

• Creating M20 x 1.25 internal threads in through holes and blind holes
• Repairing damaged threads in maintenance and service operations
• Small-batch and medium-volume production of threaded components
• Manual tapping with tap wrench and machine tapping with tapping head or CNC machine

Key specifications

• Thread size and pitch: M20 × 1.25
• Intended hole type: through holes and blind holes
• Application: internal metric thread cutting
• Suitable materials: steel and common machinable metals
• Operation modes: manual tapping and machine tapping

How to use

Select the correct pilot hole diameter for M20 × 1.25, secure the workpiece, and align the tap perpendicular to the hole. Use appropriate cutting fluid to reduce friction and improve chip evacuation. For manual use, turn the tap in with steady pressure and reverse periodically to break chips. For machine tapping, set spindle speed and feed to match material and tap type, and use a tapping head or rigid tapping cycle where available. Clear chips frequently and inspect thread quality during the process.

Usage recommendations

To achieve consistent thread quality, match hole size, cutting speed and feed to the workpiece material, keep the tap properly lubricated, and avoid excessive axial loads. Replace the tap when wear or damage reduces thread accuracy or increases cutting forces.