Lever Throttle Needle Scaler. Popular scaler for its short length and light weight. Very powerful for its size. Ideal for use as a chisel gun for cutting metal, or a needle gun for cleaning contoured surfaces. Removes rust or paint and de-slags metal surfaces. Lever throttle offers easy, accurate control of chiseling action. Used for scaling in assembly shops, steel mills and foundries. Can also be used to remove caulking.