Manufacturing process: Our Heavy Duty Standard Hose Crimper, Through high standards of manufacturing, Made of heat processor steel mold and ductile iron, Thickened mold frame and thickened hinge points, For a longer service life. Product suitability: For Your Convenience our Heavy-Duty Bench Crimper, Equipped with five crimping dies, The mold dimensions are: 0.44", 0.48", 0.53", 0.58", 0.63", In addition 5/16" One Braid, 5/16" Two Braid, 13/64" One Braid & 13/64" Two Braid 1/4" One Braid, PVC & Rubber Hoses all can be used on our Heavy Duty Standard Hose Crimper. Important matters: For your safety when using: Ensure that the compression arm is in the closed (down) position, then adjust the screw so that it contacts the stop. The adjustment screw should never be set lighter than the end stop. When using oversized hoses, adjust the screw looser to avoid crimping too deep. You will receive: One Heavy Duty Standard Hose Crimper, One instruction