I have one and can say in the beginning I used it a lot. Now that I am a little more experienced with glass breaking I don't seem to use it as much. I mainly use it now for the pieces that don't start to break the way I think they should have.

chickeemama

The M80 is a stand alone unit not a Safety Break.
I have no use for the safety break and I bought the M80 mainly as a 'saw saver'. Wavy lines are easy and it's much cheaper and faster than the saw.
What kind of breaking pliers are you using now?

I Never bought one - I'm glad I didn't. They sell so many "toys" that you really don't need . Once you get the hang of breaking glass - you'll be sorry you wasted your money on it. You'll be a crackin' & a snappin' before you know it !

I have an M-80 but have never found it easy to use. It is very big and takes up a lot of space and awkward to store. I love most of the Morton tools, but the M-80 is not one of them. I do have a tutorial on my web site with 7 different ways to break out the glass once you've scored it. There should be something there that you will find helpful.

Sueny

Here is a link that might be useful: How To Run a Score Line

Su, I can't believe you find the M80 hard to use being master of the snap and break methods described on your site.
As stated I didn't buy it for straight lines, but it is almost foolproof for a half inch or less and a lot cheaper than a really good strip cutter.
I hang my M80 on the peg board with my tools or under my light table, takes little space. I guess it would make a useful pen holder if it must be kept on the cutting bench.
I've seen a few demos over the years and being a fan of Mission and Frank Lloyd Wright thought it might have a place on my bench but like Kathy looked on it as a toy. But, have seen beginners shine from owning the Glass Shop stuff!
I think that the Morton system needs a good demonstrator, from there the individual can judge their need. When I saw the M80 under the hands of a master I was sold on the perfect wavy lines and tight curves.
Another point to consider is that not all of us buy at wholesale so a disabled wrist and the inability to apply the even pressure required for a good break or the money to lash out on a Cutters Mate or saw gives Morton a thumbs up from me and I don't have any use for most of it!

Thank! I looked at the tutorial, it looks really helpful and I'll give it a try. About my beaking pliers, I don't know what kind they are. They have a plastic or rubber guard on the ends and it looks like the end is not straight. There is also a pair of plain plastic ones. I've tried pliers and holding over edge of hard surface and snapping with my hand. I have only tried the thinner strips and they're not going so well. I'm getting Vicki Payne's cutting videa through the inner-library loan system and hoping that will help. I really haven't been able to just practice enough yet and was probably looking for an 'eaasier, softer way'. Most of what I've done thus far has been with a wheeled cutter. Appreciate your suggestions. May still end up getting the M80, but I know I could so easily fall into a pattern of buying so many tools ahead of learning how to do it the old and tested way, and find in the end I have expensive things I don't use. I started gluing the tempered glass or crush glass to my BB ball today. Suz

I know this post is really old, but If any of you no longer use your M-80 and are interested in selling, let me know!