with Bosch Power tools the Green ones are DIY with nylon gears
the blue one are pro with steel gears
the problem with the big sheds is they buy in bulk and you often get an old model
in the case of one make of drills they sell, the batteries fitted have a red case signifying cheaper construction and a lower amperage the trade places sell them with black batteries heavy duty L ion
I prefer to buy from a trade suppliers as if it goes worng its easier ot get a repair, adn they often work out cheaper or supply some extras such as spare batteries or bits
the blue one are pro with steel gears
the problem with the big sheds is they buy in bulk and you often get an old model
in the case of one make of drills they sell, the batteries fitted have a red case signifying cheaper construction and a lower amperage the trade places sell them with black batteries heavy duty L ion
I prefer to buy from a trade suppliers as if it goes worng its easier ot get a repair, adn they often work out cheaper or supply some extras such as spare batteries or bits