surfaces 36 and 38 by angle a in fig6 as a result of such surface skewing a radial component of force is generated as indicated by arrow 56 this radial load is over and above the radial load generated by the direct contact of the segments with the obstruction as illustrated in fig5 as a result the adjustable swage is now more likely to clear an obstruction rather than stall due to the additional radial collapse force provided those skilled in the art will appreciate that both ends can have the same treatment to create a radial component force at both ends even though only one end has been described while the creation of the additional radial force has been accomplished with bending load surfaces other ways to create a radial force when an obstruction is hit are also within the scope of the invention in the preferred embodiment the additional radial force is not created until an obstruction is hit so that in normal expansion operation the operation of the adjustable swage described is similar to the prior art operation in that sense a radial collapsing force is not created during normal operations when it is not needed rather it is when an obstruction is encountered and the adjustable swage needs to get smaller in diameter to get past that obstruction that the bending takes place and the collapse force comes into play to get the adjustable swage past the obstruction additionally the size of gap 58 adjacent flexible flange 26 is sized such that even when flange 26 closes gap 58 the bending is still in the elastic range the above description is illustrative.