features 1, Manufactured from chrome-vanadium steel for extra strength and durability. 2, Each bit has its size imprinted on the bit itself, making it easy to identify them after you've removed a handful from the case. 3, Comes with a plastic case for easy storage and transportation, convenient to use. 4, Hardened and tempered, professional tool for commercial or occasional use. 5, 9pcs 1/2inch drive hex bit sockets, fit for many areas.Features: Manufactured from chrome-vanadium steel for extra strength and durability. Each bit has its size imprinted on the bit itself, making it easy to identify them after you've removed a handful from the case. Comes with a plastic case for easy storage and transportation, convenient to use. Hardened and tempered, professional tool for commercial or occasional use. 9pcs 1/2inch drive hex bit sockets, fit for many areas. Specification: Condition: 100% Brand New Material: Chrome-vanadium steel Color: As picture shown Square head: 1/2 inch (12.5mm) Sleeve length: 80mm/3.1in Sleeve size: H4/H5/H6/H7/H8/H12/H14/H17 Application: Fit for auto repair shop, 4S shop, personal DIY, CNC machine tools, construction site work, etc. Package List: 9 * Hex Bit Socket 1 * Case Note: Please allow slight dimension difference due to different manual measurement. Thanks for your understanding!