A taper and radius may be formed in the distal end of the dilator and sheath by thermally forming the raw tubing into the desired shape. [0080] The hub 106, 108 on the sheath 104 and dilator 102, respectively may be fabricated from polycarbonate, polyethylene, PEEK, urethane or other material and be injection molded, adhesively bonded, or thermally bonded to the tube.