Hey folks! I'm trying to decide between the M12 Gen 2 Stubby and the M18 Mid-Torque impact wrenches for my DIY projects as a home mechanic. After diving into some TTC videos and various discussions, I'm still torn.
Here's what I've gathered:
1. The M12 Stubby is about an inch shorter and significantly lighter than the M18 Mid-Torque, making it easier to handle, especially for tight spaces.
2. Although the M12 is rated for 100 ft/lbs less torque than the M18, it seems like the M12 takes longer to reach peak torque compared to the M18, which gets there quicker and maintains it.
3. I've read that the M12 often needs a 5.0 battery to get close to its rated torque, while the M18 has more consistent performance without battery fuss.
4. Some users mentioned the M12 drains quickly and may risk overheating when working at high torque levels for extended periods.
5. On the flip side, the M12 battery is also compatible with Milwaukee's electric ratchets, which I might want to get later on.
Considering I'm a DIY mechanic working on my Honda Civic—planning to do some maintenance like replacing the serpentine belt and water pump—I'm wondering if the lighter and more compact M12 is still worth it despite these issues? Plus, I'm looking into an electric ratchet to pair with it, but I am concerned about the battery life. Any advice?
3 Answers
If you're planning to do more than the occasional repair, having both the M12 Stubby and M18 Mid-Torque is ideal. Start with the Stubby, as it covers most general tasks and is super handy for tight spots. You can always pick up the M18 later when you hit a really stubborn bolt.
Honestly, I wouldn't stress too much about battery life unless you're planning on working non-stop for hours at a time. The M12 Stubby works great for most tasks. Just have a 5.0 battery on hand and you should be set. As for the electric ratchet, it’s nice, but you may find you don’t need it right away if you're getting that impact wrench first.
I think the M12 Stubby is a great choice, especially if you're not using it every day. It's lightweight and compact, which is perfect for home mechanics like you. I use mine for all sorts of jobs and it's been reliable. However, if you need to tackle tough bolts, having an M18 high torque in your setup eventually wouldn't hurt.
That makes sense! I just want to make sure I have the right tools for when I need them. Thanks for the tip!

Good point! I guess I can always get the ratchet down the line if I really feel the need for it.