Superiority: Compared to older models (98 screwdriver bits versus 81 models), we offer 114 screwdriver bits and 115 models, adding 34 bits to meet your needs. more requirements. Material: S2 steel, stronger and more durable. Improvements: Screwdriver Head: We increased the length by 30% to help you achieve this. Manipulate screws deep in your equipment. We invented Use the faucet screwdriver bit to solve the rust problem. Application: Ideal for repairing laptops, mobile devices and other precision items such as watches and glasses. clever and easy to use tools to take with you. The unique design also prevents the loss of parts. Color: red Drill material: S2 steel Quantity: 135 pieces. Box dimensions: 17.5 x 10.5 x 6 cm.