73-piece ratchet wrench and screwdriver set for easily tightening and loosening fasteners; The precision screwdriver bits is non-magnetic which is suitable for small electronic instruments like watch, smartphone, glasses and so on; 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 20.1 x 11.6 x 3.6 cm (LxWxH) Tips:Do not use precision screwdriver bits on oversized screws which need large torque force, precision screwdriver bits is only suitable for small electronic device., Weight: 1.38 pounds, Manufacturer: Amazon