DescriptionHex key is made of durable steel by quenching and forging. It has an oxide coating to prevent rust. Its hardness and can be used for a long time. Provides greater torque, greater reach and convenient operation. Steel allen keys easier to put in and take out the wrench, and can be easily carried around. Which is very suitable for cycling travel or store in bag.Features- Color: Silver. - Material: Steel. - Size: 9.20 x 3.50 x 0.60cm/ 3.62 x 1.38 x 0.24 inch. - Portable and easy to use. High strength, high toughness, wear resistance. - These tools are for garage workshop, tool box, metal workers, mechanics and DIY etc. - Made of heat treated steel with oxide finish, which can preventing rust. More durable and reliable. - Precisely-sized, chamfered ends insert smoothly into fastener head, reducing wear.- Short end flat is head design, larger force area and more labor saving. Fast insertion.