Adopted high precision , low inertia and low impact driving brushless motor , long lift , high quality.Our screwdrivers are designed for use with precision torque locking screws. It can be used for assembly of small items such as mobile phone, cameras and eyeglasses, and large items such as home appliances, computers and furniture.Low vibration, low noise, meets environmental protection demands.Brushless motor suitable for cleanroom useMotor does not generate any carbon particle over flow to reduce air pollution and protect our environment.Connecting with soft start and speed adjustable function power supply, not only match to changing fastening condition, but also keep the best fastening quality.With the most prominent gold plated micro switch (The service life of the contact point withstands 10 million on and off contacts.)Design features separation of screwdriver and control for higher serviceability rate.Switching power supply plugs directly into screwdriver and supplies stable vol