Precautions for operation
*Before operation, please familiarize yourself with the operating instructions and forward and reverse rotation of the electric drill.
*When the electric drill rotates, it is normal to generate small sparks due to friction between the carbon brush and the rotor, which does not affect its use.
*Accelerating the speed appropriately during cornering can help with cornering.
*After use, please clean and dry the dirt on the spring
*Do not use force to pull the spring