Features 1、Made of qualified steel material, solid and firm, durable to use, ensures a long time service. 2、This set includes the following hex key sizes: 3/8, 5/16, 1/4, 3/16, 5/32, 1/8, 3/32, 5/64 and 1/16-inch. Meet your different needs. 3、Ergonomic design make it easier to operate, more comfortable to hold. 4、Professional and practical design, beautiful appearance, convenient to use. 5、High quality hex key set is ideal for mechanics, engineers, garages, etc. Specification Features: Made of qualified steel material, solid and firm, durable to use, ensures a long time service. This set includes the following hex key sizes: 3/8, 5/16, 1/4, 3/16, 5/32, 1/8, 3/32, 5/64 and 1/16-inch. Meet your different needs. Ergonomic design make it easier to operate, more comfortable to hold. Professional and practical design, beautiful appearance, convenient to use. High quality hex key set is ideal for mechanics, engineers, garages, etc. Specification: Material: Chrome vanadium steel Weight: 357g/12.6oz Specification: 3/8, 5/16, 1/4, 3/16, 5/32, 1/8, 3/32, 5/64, 1/16 Package List: 1Set * Wrench Package List