With this one product, you can use 4 sizes. Most of the screws in the house are a screwdriver.
The screwdriver has a ratchet mechanism for easy continuous work and very convenient.
The gear can be rotated forward and reversed, and can be fixed so you can work faster.
Uses newly developed small screws (+1), standard screws (+2), large screws (+3), and slotted bits.
Please be aware that you cannot choose the color of the main unit. ]