Feature and specifications 1- LCD display screen 2- Use 16:1 bending hand machine 3- Simple, exquisite connection socket design, easy to operate 4- Speed, torque can be adjusted, 9 kinds of procedural memory 5- Automatic reversal of torque 6- High-capacity rechargeable battery 7- If we don’t use the motor for ten minutes and it will automatically shut down SN-Smart’s characteristics 1- No pedals, and more convenient to operate on the console. 2- No root measurement. 3- more specific than others. 4- Single machine has a better expansion performance. 5- Better and lighter to handle which makes the operation is easier. 6- The performance is more stable because the head is more stable and the file gap is smaller. 7- Automatic reversal is more sensitive.