PRECISION It’s at the heart of everything we do Welcome to Precision Technologies Group – and British innovation at its finest. PTG Holroyd Precision’s highly advanced gear, rotor, screw and thread milling and grinding technologies produce the world’s most accurate helical components. PTG Friction Stir Welding’s Powerstir FSW machines enable manufacturers in sectors as diverse as automotive, aerospace and high-speed rail to create lightweight, superior, high-strength joints. While from production facilities in the UK, USA and China, PTG Holroyd Precision Rotors uses PTG Holroyd machines to manufacture ultra-precise helical components, in batch sizes from prototype to high volume. In short, precision is at the heart of everything we do – and it’s been that way ever since our business was established 160 years ago.