Fort Wayne Metals Helical Hollow Strand (HHS® Tube) furthers Fort Wayne Metals’ excellence in stranding and cabling of medical grade wire. HHS Tube is a Fort Wayne Metals stranded wire with an open center working channel. HHS Tube is manufactured using wire material drawn by Fort Wayne Metals. It has excellent whip free characteristics, and can be made highly kink resistant. Designs can be tailored to customer requirements of tension, compression, torque and pitch direction.