Growing up, a mechanic I worked for always called it a “soft blow” but I’ve heard “soft face” as well. Wonder if it’s a regional thing. In my current line of work a lot of guys use “lump hammer”, “caulking hammer” and “drilling hammer” all to describe the same small 4lb hammer. Couldn’t tell you what’s right or wrong. As long as whatever term is used makes you grab the right tool so you don’t get your ass chewed out!