TIG Brush™ Genuine Technology Enhanced to give you a Superior finish The TBX-550 utilises a specifically focused adaptation of the 700 series design, to align its performance with Ensitech’s latest technological advance, the PROPEL™ Torch. As you would expect, this gives you the superior results consistently and reliably delivered by our proven combination of heat, electricity and use of genuine TIG Brush™ cleaning, marking and etching fluids. TIG Brush™ on going innovation and patented power delivery system gives you peace of mind in the knowledge that you have achieved the industry’s highest level of passivation in a fast but safe way.