All pneumatic tools require some oil in the air line to lubricate the inner moving parts and reduce the wear between them, cooling them and reducing friction. Percussion units (breakers, hammers) without oil cause strong wear on the piston and cylinder. Decades ago, compressors leaked so much oil that it was enough to lubricate hammers and breakers. But that does not happen anymore.
Breaker & Hammer Air-Oil is a fully synthetic lubricant with excellent lubricating, rust-preventing and de-icing properties, especially developed for TEX pneumatic breakers and hammers, as well as DIP and DOP pumps, for a smooth continuous operation under extreme conditions.