Quote:
Originally Posted by HaXx
if i upgrade, itll be to the gen 3 compact 3/8 m18, its basically the m12 stubby, but fits the m18 batteries
the hex surge sucks. i mean i still use it, but its weak as hell. it sucks having to break every suspension nut/lug loose by hand first

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Like I said, the hex drives are not really made for working on cars and loosening they types of fasteners on a car. They deliver much higher impacts per minute which helps drive screws into wood much quicker. The Surge is much faster at driving screws then the previous gen hex impacts that have standard hammer/anvil setups.
If you are already using M18 tools that is a good choice. I have a mix of both so I like to use the M12 as it is more compact and delivers similar power. I really only see the benefit of using cordless in situations where space is a constraint or a hose gets in the way too much, like working under the car.
I actually like using the M18 blower around the shop a lot too. It is convenient and easy to use when you have to clear a tight space. You really need an XC 6.0 or larger battery with it though, it eats through them quick.