Pipe Crimper are Suitable for Sizes 30 to 24 (0.41 to 0.71 mm) Galvanized Round Pipes and (0.31 to 0.61 mm) Black Furnace Pipes.No set-up or Adjustment. Sheet Metal Crimp Drive Shaft has 50.8 mm ² Its Hardness and Super Toughness not Break Easily. We upgraded the pipeline crimper to improve the hardness of the transmission shaft ,And redesigned the angle of the gear tip to disperse the pressure at the main stress point Compact,easy to maneuver and balance., Weight: 1.64575078583 pounds, Manufacturer: Yoeruers