I own 4 torque wrenches. All mechanical ones.
1-5 Nm 1/4"
5-20 Nm 1/2"
10-100 Nm 1/2"
25-250 Nm 1/2"
and two breaker bars 1/2" and 3/4".
If i need a bigger one like for the central axle nuts (460 Nm), i lend one.
10-100 Nm and 25-250 Nm are mostly used on my cars / 986.
All of them can be calibrated. And i recommend only to buy the ones that can be recalibrated and also let them recalibrate from time to time.
Never, and i mean never use a torque wrench to open nuts and bolts.
Digital ones. Nice idea but i don't like them. They won't survive long if i throw them in my tool case.
Digital torque adapters. Nice idea, but not sturdy enough for my personal use. Also sometimes needs to much space.
If i need 3/8" or 1/4" i use an 1/2" to 3/8" or 1/2" to 1/4" adapter.
Regards, Markus