Why do the bits on the electric straight screwdriver in the Mijia Tool Kit wobble during use?

Question

Accepted Answer

If the bits on the electric straight screwdriver in the Mijia Tool Kit wobble during use, please consider the following aspects:
1. The bits on the electric straight screwdriver in the Mijia Tool Kit may wobble slightly during use due to a designed clearance between the gearbox interior and the bit socket.
2. This clearance is intentionally built into the structure to ensure smooth rotation, proper torque transmission, and reliable operation of the internal components. As a result, a small amount of movement can be observed when a bit is installed.
3. This slight wobbling is within normal design tolerances and does not indicate a defect or quality issue. It does not affect the screwdriver’s performance, accuracy, or safety during normal use. On the contrary, the designed clearance helps reduce internal stress, improves durability, and allows the screwdriver to function stably across different working conditions. As long as the correct bit is used and properly inserted, the tool can be operated with confidence.