Features: Making it versatile enough for a wide range of applications DURABLE CONSTRUCTION: Made of CHROME VANADIUM STEEL, sturdy and durable, this nut driver set is built to withstand tough jobs and last for years to come SOLID SHAFTS: The nut drivers in this set feature Solid shafts, They can handle higher torque without the risk of bending or breaking. Overall length 193MM(7.6IN) and 90MM(3.54IN) Solid Shaft, allowing for easy access to nuts and bolts in tight spaces and hard-to-reach areas SPECIAL MARKING: Each nut driver has its own size printed on the head, and the handle of them has a different color for easy identification during working. This distinctive mark is more user-friendly and aesthetically pleasing HANDLE: The handle material is made of PVC, which offers excellent wear resistance, chemical resistance, slip resistance, impact absorption, and maintains a comfortable grip even during prolonged use without getting hot Includes: 3/16 1/4 3/8 3/16 7/16 11/32 1/2