BT30-90°-21-ER20 Fixed Angle Head Collet Chuck 90°Angle 11 Gear Ratio 5000r/min Single Head 90 32579169Description: Angle head is a kind of machine tool accessory, the machine tool installed with the angle head can rotate the center line of the tool and the spindle rotation center line at an angle to process the workpiece. The use of angle head, without changing the structure of the machine tool can increase its processing range and adaptability, so that some of the traditional methods difficult to complete the processing can be achieved, and can