Texas Pneumatic Tools rivet busters are compressed air powered pneumatic tools, used to cut & drive metal rivets by breaking the concrete surface. They are ideal for road & bridge repair work, railroad car repair, metal tank demolition and mixing tank cleaning. Rivet buster pistons are made of steel and are used to drive & produce oscillating motion of the hammer. Rivet busters have positive retention of the piston to prevent injuries and a built-in barrel bridge for safety.