HAZET 842AG-1 M12 x 1.5 Thread Chaser for Spark Plug Threads

Damaged or clogged internal threads in cylinder heads can make spark plug installation difficult or even impossible, leading to costly repairs. The HAZET 842AG-1 thread chaser is a precision tool that cleans and restores M12 x 1.5 metric fine threads, ensuring a proper fit for spark plugs and other components. Made from high-performance tool steel with a burnished finish, it offers durability and corrosion resistance for professional use.

Who is it for

This thread chaser is intended for automotive technicians, mechanics, and serious DIY enthusiasts who need to repair or maintain internal threads, particularly in engine cylinder heads. It is suitable for use in workshops, garages, and service centers where precision and reliability are essential.

Main features

• Precision thread restoration for M12 x 1.5 internal threads
• High-performance tool steel construction for long life
• Burnished surface finish for improved wear resistance
• External hexagon drive (16 mm) for use with standard sockets or wrenches
• Compact 80 mm length for access in tight spaces
• Right-hand thread direction for standard applications
• Made in Germany to exacting standards

Specifications

• Thread size: M12
• Thread pitch: 1.5 mm
• Thread type: Metric fine
• Drive type: External hexagon
• Drive size: 16 mm
• Overall length: 80 mm
• Material: High-performance tool steel
• Surface finish: Burnished
• Application: Cleaning and restoring damaged internal threads
• Compatibility: M12 x 1.5 internal threads (e.g., cylinder heads)
• Product series: HAZET 4930
• Country of origin: Germany

Tips

Before using the thread chaser, ensure the area is clean and free of debris. Apply a small amount of cutting oil to the tool to reduce friction and improve thread quality. Turn the chaser slowly and steadily, backing off periodically to break chips. After use, clean the tool and store it in a dry place to prevent corrosion.