Pretty sure most people can get away with only owning 1/2 drive in deep impacts. Esp if you got chrome 3/8 drive up to 24mm
if 1/2 deep won’t fit and 3/8 drive isn’t strong enough to hit your 21s your 22s and your 24s then break it with a combination wrench and then switch to your 3/8 chrome
if your 27 mm won’t fit a 1/2 deep impact then who designed this car where a huge bolt is buried like that
if you wanted to be streamlined you could go
3/8 8 mm to 24 mm shallow, deep, and mid all in chrome
1/2 start at whatever size you want like 14 mm maybe to deal with JIS M10s and just do deep impact
1/4 just do shallows chrome
it’s a slippery road to try to get everything you wind up with shallow mid and deep chrome and impact in 6 point and 12 point for 1/4 and 3/8 and 1/2 and once you got all that you start making posts asking about 3/4 drive and then you really got problems