These adapters go UP in size on your ratchet or driver, a must have if you own a 3/8" impact driver e.g. Milwaukee 2554-20 M12 FUEL 3/8 in. Stubby Impact Wrench. They are very low profile so add very little to the tool vs. buying the separate 1/2" drive impact wrench.
https://www.amazon.com/gp/product…RIYM&