How to use the VM 550 and VM 510 Stand Alone A-Frame

[@ztechrepairs]

Would love to see a basic / quick guide on how to use the VM810 . Y'all are making great videos. Keep them up.

[@vivaxcananada]

Ok, it will be short, but you'll see it soon.

[@davidamaya3185]

You can use wet sponges too on concrete or pavement to find fault just add two sponges on each side of spikes