The Ronix 3420 is a cordless rotary kit with a high efficiency DC motor that offers a no-load speed of 5000-18000RPM. This gadget is well-suited for a wide range of tasks due to its excellent performance and efficiency. If the operator requires a certain speed, the variable speed adjustment allows the user to do so since it covers a large range of no-load speed. The Ronix 3420 has a locking pin system that allows the user to replace accessories more easily and quickly, as well as a high-safety mechanism. This rotary kit's bit holder ranges from 1.6mm to 3.2mm, and many accessories can be added to this rotary kit. The charge level is visible with three lights, providing the user with complete knowledge of the amount of energy remaining on his/her device's battery. The last but not least feature of this rotary kit is the LED light, which illuminates the workspace and allows the user to operate in low-light conditions.