It's jargon. Jargon is extremely important to people in certain fields, but pretty worthless to others. A wrench is a wrench when you just need a wrench. But

It's jargon. Jargon is extremely important to people in certain fields, but pretty worthless to others. A wrench is a wrench when you just need a wrench. But a wrench is a combination wrench when you need a cone wrench.