73-piece ratchet wrench and screwdriver set for easily tightening and loosening fasteners; the precision screwdriver bits are non-magnetic, which is suitable for small electronic instruments like watches, smartphones, glasses, and more; the other bits are magnetic, which is suitable for repairing popular electric appliances, like air conditioners, washing machines, refrigerators, TVs, and more 3 driver settings: clockwise and counter-clockwise ratcheting and fixed in the locked position; driver’s free-spinning base allows for turning the handle while easily maintaining consistent pressure Made of chrome vanadium steel that has been heat treated for hardness; corrosion-resistant finish for added strength; non-slip handle provides a comfortable, secure grip Plastic storage case included with dedicated space for the driver, sockets, and bits Measures 7.91 x 4.57 x 1.42 inches Tips: Do not use precision screwdriver bits on oversized screws that need large torque force; precision screwdriver bits are only suitable for small electronic devices