Very similar, not quite as "cool" but very impressive...
Yeah, it's pretty impressive. The sawblade one is definitely a special effect though. The way it kicked up sawdust and "sawed" the board clean thru? Nobody could put enough spin on a sawblade to do that. I would totally believe if it had just smashed/cut through instead.
Very nicely done effect though.
I think the tape measure one was just trying over and over again and getting lucky, with a bit of genuine skill.