Key features

• •EASY PISTON RING INSTALLATION: The ABN® 3" Inch Piston Ring Compressor is a ratchet-type lock mechanism with fingertip easy release thumb switch lever, hex spanner, and adjustable safety screws to allow for safe and quick install of piston rings by simple ring compression; Not intended for expanding piston rings
• •DAMAGE-FREE: Perform engine rebuilds and use this compressor for proper installation of the piston and rings in the cylinder without twisting or damaging parts; Perfect fit on the piston and a positive locking action to compress rings and allow installation of pistons into cylinders
• •WORKS ON VARIOUS PISTONS: Designed for use on the most common automotive piston and ring diameters ranging in thickness from 2.1-inch to 6.9-inch (53mm to 175mm); Small enough to use on small engines such as push mowers and riding mowers; Large enough to use on machine tractor pistons
• •EASY TO USE: Use an oil lubrication (not included) on ring and piston before compressing; Place piston inside the cylinder, tighten the compressor, lightly tap the piston into the bore with a rubber mallet (not included) while holding downward pressure on compressor
• •BUILT TO LAST: Constructed from spring steel for maximum strength and longevity that resists corrosion