Tap set Art-Pol M18x2.50mm, metric thread taps, 2 pieces (MPN 56430)

The Art-Pol tap set M18x2.50mm contains two metric thread cutting taps designed to create or restore internal threads with an 18 mm diameter and a 2.50 mm pitch. Supplied as a 2-piece set, these taps are intended for use in workshop and maintenance environments on materials and metals that accept standard M18x2.50 internal threads. The set provides the basic tools needed for tapping blind or through holes where this metric thread size is required.

Advantages

The taps are produced to metric specifications for consistent thread form and fit. Supplied as a matched pair, the set typically includes different tap types to allow progressive cutting and improved thread finish. Their geometry and cutting edges are suitable for conventional hand-tapping or machine-tapping with compatible holders. The compact 2-piece configuration is convenient for storage and transport.

Suitable for

• Creating or repairing internal M18x2.50 threads in steel and other machinable metals
• Workshop maintenance and mechanical repair tasks
• Preparing threaded holes for bolts, studs, and fastening assemblies
• Use with manual tap wrenches or machine tapping fixtures

Key specifications

• Thread size: M18
• Pitch: 2.50 mm
• Set quantity: 2 taps
• Intended application: internal (female) metric threads
• Suitable for: hand and machine tapping operations

How to use

Select the appropriate tap from the set according to the required cutting sequence, typically starting with a taper or starter tap and finishing with a plug or bottoming tap if needed. Secure the workpiece and drill the correct pilot hole diameter for M18x2.50 thread. Use cutting fluid appropriate for the material being machined, align the tap square to the hole, and apply steady rotational force while advancing the tap. Reverse periodically to break and clear chips, and avoid excessive torque to prevent tap breakage. Clean the newly cut threads and inspect for correct form and fit.

Usage recommendations

For best results, use the tap set with an appropriate tap wrench or machine holder, select the correct pilot drill size for M18x2.50, and employ suitable cutting fluid for the workpiece material. When tapping harder or tougher alloys, reduce feed and increase lubrication to extend tool life.