Features Magnetic Holder to Avoid Drop off of the Adaptor When Working in Odd Positions Tube and Die set stabalizing arm to keep the die and tube in place during tightening Increased die compression area helps keep die in place Higher PSI hydraulic ratio for quicker action and job completion Fabricates factory style 37? and 37? double flare found on aviation and specialty automotive applications. Handheld hydraulic pump operates easily with all light stainless tubing. Includes: 3/16, 1/4, 5/16, 3/8 and 1/2� dies 3/16, 1/4, 5/16, 3/8 and 1/2� double flare adapters and 37? Cone