Do I need sockets to use this wrench?

Yes — the wrench ships as the tool only. You'll need 1/2" drive sockets that match your bolt sizes. Most shops already have a socket set on hand.

How do I know when I've hit the right torque?

The wrench clicks audibly and the handle gives tactile feedback when you reach the dialed-in value. Stop immediately when you feel and hear the click — don't keep turning.

Can I store this wrench at a specific torque setting?

Always back off the adjustment dial to its lowest setting before storing. Leaving the wrench at high tension weakens the internal spring over time and reduces accuracy.