This our reliability, durability, simplicity heavy duty precision Lathe. The 4.5” spindle bore is perfect for larger work pieces. The spindle made of hardened and ground alloy steel with a triple support bearing system for maximum stability and accuracy. Sharp’s patented special adjustable headstock can eliminate vibration turning at high speeds and irregular material. The fully enclosed quick-change feed gearbox allows easy selection of threads and feeds without changing gears. The gearbox assembly is automatically lubricated for smooth and quiet operation. All gears are hardened and mounted on bearings for easy shifting. And there are more capability features.