Variable speed control by dial Electronic control Soft start Flat-top design and horizontally installed power supply cordprovides stability for easier bit change Easy to operate rocker type on/off switch Shaft lock for easy bit change Precision cutting depth adjustment Simple and efficient base lock system High visibility of bit top. Enlarged opening section of base assembly for excellent bitvisibility while maintaining durability High durability and accuracy obtained by using aluminum for base assembly Round base assembly for smooth and fast cutting with easy handling Ergonomic body grip easy-to-grasp with one hand