3-IN-ONE is a specially formulated lubricating penetrating and cleaning oil 3-IN-ONEs unique set of ingredients enable it to lubricate as well as protect metal surfaces on nuts and bolts hand and power tools bearings locks fans firearms bicycles rollers wheels drill bits saw blades ladders seals bearings shafts trailer hitches skateboards and moving partsnearly everything that moves Since 1894 3-IN-ONEs versatile multi-purpose drip oil has been a trusted tool used by professional tradesmen and do-it-yourselfers to lubricate moving parts penetrate rust clean and protect tools and much more Its precise easy-to-use drip spout enables precise application with no over spray or splatter and its updated packaging has a fill level indicator strip that shows you when youre running low 3-IN-ONE oil can be used to lubricate tools hinges nuts and bolts bicycles wheels fans and many other moving parts Lubricate hinges to keep them from squeaking Loosen rusted nuts bolts and screws Lubricate stuck locks Prevent rust and corrosion Extend the life of hand and power tools Bicycle maintenance Maintain and lubricate garage door parts Keep drill bits and saw blades cool Lubricate wheel bearings Clean and lubricate trailer hitches Lubricate fan bearings Restore garden shears and snips