This new kit aids users in creating custom two-part jaws from Thermo-Loc to hold special pieces for engraving or stone setting. It includes two sizes of aluminum angles to produce smooth and accurate Thermo-Loc fixtures using almost any vise. Special center bars separate and align the jaw halves to each other. A set of three different length bushing inserts controls jaw thickness and uniformity. This unique kit simplifies workholding like never before.