A crimping tool for applying a seal to strap material includes a tool head having pairs of jaws disposed in the tool head and operably mounted thereto, each pair including opposingly oriented jaw elements. Each pair of jaws is spaced from its adjacent pair and includes an upper and lower pivot openings. A shear is positioned between adjacent pairs of jaw elements. The shears extend between the jaw elements and include opposing openings that align with the jaw element upper openings. A pair of handles, each having a terminal end having first openings that align with the jaw element lower openings and are operably connected to one another at respective pivot openings. The tool includes at least one side plate having a pair of upper openings each aligned with the jaw element upper openings and the shear openings. The plate includes a centrally disposed notched opening. A pair of handle pins are disposed in respective handle first openings and jaw element lower openings and a pair of link pins are disposed in respective side plate upper openings and respective jaw element upper openings and a shear opening. A pivot pin is disposed in the side plate notched opening and in the handle pivot openings. The shear can be reversible to accommodate different sizes of seals.