Marking Rafter Angles with Torpedo Level

and valleys and slide it along and we've also put plates in here for torpedo levels so you can pop your line on your rafter tails the same thing you can go like this just as quick and Mark both sides as quickly as you would mark one side when you're walking the top plate if you had a line on both sides you can walk the top plate and cut down with your worm drive or cut with your skill saw or if you're left-handed or right-handed the marks on the proper side and it's a lot safer for you to cut