Jet Lube J-75 (Brushable) drill steel lubricants are environmentally preferred, lead-free compounds specifically designed for percussion drilling. This formulation is highly fortified to provide excellent resistance to shock, galling and seizing. The anti-friction properties are unsurpassed while providing easy thread assembly and disassembly. under makeup pressure, J-75 literally "plates" and form a tenacious armored coating that eliminates metal-to-metal contact while penetrating voids, surface imperfections and score marks to increase thread life on steel bits, joints and couplings.