An electric handpiece has consistent power and makes use of a gear train that helps in delivery of rotation via a chuck. This allows for the creation of precise and smooth margins that partially mitigate the risk of microleakage. An air-driven dental handpiece, on the other hand, creates a superb tactile feel, underlining its importance in applications like caries removal. Moreover, if the caries lesion is too soft, a heavy handpiece can cause removal of healthy tissue unnecessarily. In such cases, a strong tactile is very important.