DR Handmade Strings, brainchild of Al Dronge, founder of Guild Guitars and passed onto his son Mark Dronge, is a company that takes pride in producing handmade strings on a big scale in a market where machines are increasingly more prominent. DR Handmade Strings consider handcrafted strings, American made, with American materials often more accurate and consistent than machine made and also re-established the importance of round core strength. The DR ZEBRA strings which were the first out of the factory are made alternating between phosphor bronze and nickel plated steel windings. Dr Handmade Strings introduced the first colour coated strings in 2001 advancing to NEON coating strings in 2010. The latest DR DDT drop down tuning sets are optimized for low tuning retaining tuning, stability and tension.