There is a life time warranty on glass... what!?! how is this possible. I used this tool for all jobs i had to put an hdmi cable in the back if the TV and used it there as well as on odd jobs up against the manifold. I would recommend this to anyone who want to have a quality product.
Great idea with a light! The problem is the light shines / reflects back into your eyes as much as to the object you're trying to focus on.
Handy little things in addition to about a half-dozen others of various sizes that I have in my box. Price could be a little cheaper though, but they are nice to have.