27-piece magnetic ratchet wrench and screwdriver set for easily tightening and loosening fasteners; ideal for working on 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 T-shaped handle provides added torque and a comfortable grip Plastic storage case included with dedicated space for the driver, sockets, and bits Measures 6.8 by 3.7 by 1.3 inches; backed by an Amazon Basics 1-year limited warranty Note: This set supports the nut size range: 5/32 to 15/32 inch, 4mm to 12mm