Unique, brushless LED micromotor is 40% shorter and 33% lighter. Offers the same quality of speed control as the MX2 and MX. Equipped with SMART LOGIC electronic control, so power is automatically regulated to deliver precise, constant power without the slightest jolt. Other features include an adjustable LED light and vibration-free rotation, plus it is autoclavable and maintenance-free. Compatible with the Micro-Series attachments.