1、The multi‑purpose screwdriver set with assorted drill bits, can meet different needs. 2、An essential screwdriver set for home appliances, phone, PC,3D Printer, etc. 3、The handle design is very nice, comfortable and easy to use, the shell is strong, and the anti‑slip effect is good. 4、Complete specifications, 30 high‑quality accuracy screwdriver bits, suitable for various fields of operation. 5、Exquisitely made of 45# steel, strong and durable. The overall design gives a comfortable visual experience, while meeting the daily usage habits. 30 x Screwdriver Bit1 x Screwdriver Handle Item Type: 31 in 1 Screwdriver SetMaterial: 45# steelScope of Application: 3D printerHandle Length: Approx. 8.6cm / 3.4inScrewdriver Length: Approx. 2.4cm / 0.9inWith Magnetic: YesWith Box Size: Approx. 10 x 5cm / 3.9 x 2in