Diversified industrial Illinois Tool Works (NYSE: ITW) is acquiring a reputation for underpromising and overdelivering, and the latest fourth-quarter results only served to strengthen it. Its peer 3M Co. recently affirmed full-year 2017 guidance, and Illinois Tool Works did the same. Despite the excitement around what Donald Trump’s election victory could mean for U.S. industrial output, management claimed its segments remained pretty much on track — which suggests there might be some upside to current guidance.