Econo Sterile Tissue Forceps, Sklar, 5 in., 1x2 Teeth, Straight, Thumb, Stainless Steel, Disposable. Econo(TM) Sterile Thumb Tissue Forceps are used for grasping, holding, and manipulating various types of tissues in multiple procedures. These instruments have spring tension shanks that ultimately determine how far the instrument will open and the thickness of the tissue that can be held. BX50.