This Inline Tube professional grade flare kit will form 37° single flares on OE steel, automotive grade annealed stainless, and any soft metal tube. Includes: · Tool with 1/8”-3/4” Adjustable Die Please note: All Inline Tube bending and flaring hand tools are designed to be used with fully annealed automotive grade tubing with a wall thickness of .028”. As such, we cannot guarantee results or tool performance using these tools with any other grades or wall thickness.