The King Tony 80–175mm Piston Ring Compressor is a professional engine assembly tool designed to compress piston rings securely into their grooves for smooth installation into the cylinder bore. Built for precision and durability, this adjustable compressor ensures proper ring alignment and prevents ring damage during assembly — essential for automotive workshops, rebuilders, and engine machining facilities. Equipped with a square adjustment key wrench, technicians can fine-tune the compression for a perfect, uniform fit around the piston. The integrated clutch control system prevents premature expansion of the rings, improving accuracy and safety during installation. Lightweight yet robust, it handles piston diameters from 90mm to 175mm, making it suitable for a wide range of engines.

• Adjustable 80u2013175mm piston ring compressor for engine assembly
• Compresses piston rings evenly into grooves for safe cylinder installation
• Includes square key adjustment wrench for precise compression
• Clutch control prevents premature ring expansion
• Suitable for pistons from 90u2013175mm (3-1/2" to 7")
• Height: 80mm (3-1/4")
• Lightweight construction u2014 300g
• Ideal for engine rebuilds, mechanical workshops, and automotive repair