Pocket shape, bayonet type batch head, not easy to fix and scatter. Made of high-quality steel, it is light and , and the tail is designed with precision bearings, which is flexible and easy to use. High-precision screwdriver head is made of high-end steel (-V steel) after special heat treatment, and the hardness can reach HRC52-60. A full set of 24 batches with complete specifications can be customized for different fields. Professional maintenance kits in industrial field are reliable and . Name: screwdriver set Specification: 21 in 1 Colour:As Shown Material:steel Package Contents: 1 x Screwdriver set Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.