What is a t slot and its purpose?

A thin opening or groove in something is a slot You can put letters and postcards through the mail slot at the post office

The Skinner box works by blending tension and release — the absence of a pellet after the lever is pressed creates expectation that finds

official slot The meaning of SLOT IN is to find a place for in a schedule, plan, etc How to use slot in in a sentence

offline slot machine T-slot are slots in a machine bed They most often span across the whole bed in the x axis direction The shape is like a T but then upside