I'll take that Mag77 off your hands when I'm down to Calgary in January...I have a dewalt, ridgid, hd 77 and I gave away a mag77
Out of those, the dewalt is the best. no issues, wide rafter hook fits on joist, good quality cord and it cuts great
The ridgid is good, although it has a bit or an arbor wobble and sounds like a bag of rocks. hook is too small for i joist
the mag 77 was good, it wasn't as nice to use as the dewalt.
the hd 77 is a boat abchor. I haven't used it in years. the arbor wobbles, it sounds like something is ready to explode inside. It vibrates badly and its stupid heavy. I hate that pos. It's relegated to prazi duty.
I have a brand new mag 77 in the box I got at clearance. I'm probably just going to sell it, because I don't love the skil worm drives. It was half price so I had to buy it though.
One thing to remember, the legendary old school worm drives were made in the USA. They were very good but, IMO the Chinese saws are not the same quality or durability.
You won't find a new worm drive that will last as long as the USA made ones.
to summarize, my personal ranking of wormdrives. (from my experience)
4 HD77 (grey skil)