ITEM NAME:33 Piece Electric Hollow Power Screwdrive Hex Bits High Hardness Set Tool Descriptio n Description: Material: chrome vanadium steel (CRV) Color: silver Packing size: 7X5X2cm Features: - Chrome vanadium steel, high hardness and wear resistance. - 32 hexagonal screwdriver bits set, for electric screwdrivers, drills, 32 kinds to meet your needs. Package included: 32 batch heads +1 hex shank extension rods, batch length 25mm, lengthening rod length 60mm Note: Please allow a little size error due to manual measurement. Please be reminded that due to lighting effects and monitor's brightness/contrast settings etc, the color tone of the website's photo and the actual item could be slightly different. High quality buy, happy buyï ¼ 33-piece set of hollow screwdriver bits electric screwdriver.32 batch heads +1 hex shank extension rods, batch length 25mm, lengthening rod length 60mm. 33-piece set of hollow screwdriver bits electric screwdriver. We'd like to settle any problem in a friendly manner.