Brand new 40a air plasma cutting torch (gun) pt-31 / lg40 can be used for machines such as cut30 , cut40, lgk40, ct312, ct416, mtc-120, mtc-120p, mtc-160, mtc-160p super-160, super-160p, etc. Also , they work for the following brand machines such as rilon , riland , jasic, mitech, chiry, unt, krypton, longetivity, and so on. Rated welding current: 40 a Max cutting thickness: 8 mm The length: 4 meter (13 feet)