I have a Milwaukee battery powered grease gun with a LockNLube coupler which is incredibly useful. However, I have a few zerk fittings on some pieces of equipment that are impossible to access considering the length of the LockNLube fitting. I've tried a couple of 90 degree adapters but found them to be pure junk. Even if I remove the LockNLube coupler, the 90 degree adapters would not properly attach to the zerk without wasting grease.
Has anyone had success with a specific make and model 90 degree coupler? Thanks in advance.