[HRTKD]

For lug nuts probably any torque wrench will do. But for other stuff that requires a lower torque I urge you to tread carefully. I tried using my Craftsman torque wrench on a bolt that required 70 inch/lbs (not foot/lbs) and I completely missed the torque click because it was too soft and subsequently torqued off the bolt head.

For a floor jack I recommend that you find one that has the quick-up feature. The bottom of the frame on my (mostly stock height) Titan is a long ways from the floor and I spend a lot of time jacking up my floor jack just to get to the bottom. I think mine goes up 21" and I could use a couple more inches when jacking on the frame.

 

[HRTKD]

I've had rather poor results with mechanical/electrical items from Harbor Freight. I would not be buying a floor jack from them. Having broken a Torin jack stand I am very reluctant to buy anything cheap like that anymore. So I'm with Lubecakes, invest some money in a good quality floor jack.

 

[HRTKD]

If you're going to skimp, don't do it on a torque wrench that is used for lighter weight bolts. When it comes to measuring in inch/pounds you need to be very exact. I ended up with a 1/4" Snap-On digital torque wrench for those situations. I didn't buy it brand new, so it wasn't nearly as expensive.