The Dewalt Dcs496B 20V MAX Cordless Lithium-Ion 18 Gauge Swivel Head Offset Shears features a tool-free 360-degree swivel head which allows user to access tight quarters while maintaining comfort. The offset shear design can easily turn and cut circles and also can easily cut through 20-gauge spiral duct seams. Tool-free 360-swivel head which allows user to access tight quarters while maintaining comfort. Offset shear design can easily turn and cut circles. Offset shear design can easily cut through 20-gauge spiral duct seams. LED work light illuminates surface. Cordless shears allows user to take the tool to the workplace.