HVAC shops demand a lot out of their equipment, so when Baileigh Industrial developed the LF-20 Pittsburgh machine, they knew it had to be able to last. The LF-20 Pittsburgh machine is made from only the highest quality components which include an all steel forming head and hardened with ground shafts. The steel forming rolls on this Pittsburgh machine are case hardened using matching cut gears and needle bearings throughout for years of use and abuse.