Features: 1. After heat treatment, it is durable, high in hardness and not easy to wear. 2. The Hex wrench is suitable for electric drills, electric screwdrivers and hand screwdrivers with speed regulating devices. 3. The hexagonal drill set is clearly marked, so you can quickly find the size you need. Easy to carry and use. 4. Magnetic, which helps to keep nuts and bolts stuck on it. Can improve your work efficiency. Product name: hexagon screwdriver/hexagon screwdriver Handle: 1/4 inch hexagon (6.35mm) Material: Alloy steel colour: silver Package Contents: 20 x inner hexagon spanner 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.