Directly from One of the Biggest Pex Systems Manufacturers The Auto Rotation Adapter Automatically Rotate to Expanded the Tubing Evenly Auto-spin Expansion Head Meets ASTM F1960 Standard Metal Frame and Gear Mechanisms Ensure the Utmost Durability With 1/2", 3/4" and 1" Precision Expansion Head for Accurate Expansion Comes with a Heavy Duty Hard Case for Carry Directly from the Professional Manufacture Equipped with an Auto Rotation Adapter. Hold the Tool to Expand the Tubing. The Auto Rotation Adapter Automatically Rotate to Expanded the Tubing Evenly Auto-spin Expansion Head Meets ASTM F1960 Standard Metal Frame and Gear Mechanisms Ensure the Utmost Durability With 1/2", 3/4" and 1" Precision Expansion Head for Accurate Expansion Comes with a Heavy Duty Hard Case for Carry