I got a new tool the other day, a battery-powered impact wrench in the Ryobi One+ 18 volt range. It's one of the newer tools, with a brushless motor. I'm not familiar with impact wrenches, not having used one before, so using it was a new experience for me.
I had to remove and replace a blunt mower blade from the sit-on mower, which is a job for which I normally use the big adjustable spanner. With the spanner it's difficult. I have to brace myself against the blade to stop it turning, then heave on the wrench with most of my strength. It usually comes off OK, but it's awkward.
I tried the impact wrench. BZZZZZZT and the blade was off, didn't take one second. I had to smile, I was impressed.