sentence: There's a man working a bicycle wheel with various tools. sentence:  He starts off by turning the axle of the wheel with a pair of tongs to position the axle in the center. sentence:  Then he fixes the center nut and uses a wrench to loosen it. sentence:  Then he uses his hands to remove the axle out. sentence:  He uses another tool to unscrew a washer out of the axle. sentence:  Then he uses a tool with a magnetic end to remove tiny metal particles out of the axle. sentence:  After that he cleans the inside rim of the greasy axle with his finger. sentence:  Then he takes the washer and cleans it further to fix it back into the axle.