Bill Kirkley

I have been using a 20' extension cord I made with 10 gage copper with the black rubber insulation for years for my belt grinder and 2 hp table saw. I have a 20 foot extension cord I use for my 50 amp welder. It is made of 6 gage copper wire. I would ask an electrician what wire size you would need for 75 feet, but if you don't mind spending the money, it should work fine. If it is a three prong plug, the third prong is a ground wire. the main consideration is how you plan to run it. If it is on the ground, there is a big safety consideration. If you plan to leave it in place you should run it through conduit. You should unplug it when not in use.

I believe the formula posted above by Brian may be incorrect. The attached photo shows what I believe to be the correct formula for fuller depth, h.

I think I'll pass on the saw blade. Cutting it up with an abrasive disk would not be fun!

Clifford, my guesstimate is it ways about 75#. The last time I bought scrap mild steel it was 49 cents a pound. Based on that it is over priced!

No doubt it's like talking politics and religion! In the end it's each to his own.

Gary, for a serious knife maker I would agree. I have only forged a few blades. None of which are good enough to sell. Maybe one day. I think mystery steel has a place for beginners and hobbyists who are learning.

He's asking $100. He may take less. If it turned out to be good steel, it'd be a life time supply for me. It's about the equivalent of a plate 33X33X1/4.

If I decide to look at I'll test it. Thanks Zeb

Thanks Allen. Here is a photo of the teeth. They look ground into the blade.

Someone is selling this roughly 42" diameter saw blade that is about 1/4" thick. Any ideas what it would be made of? Is the whole blade likely high carbon steel or just the teeth.

I am not good at freehand sharpening. I got a wicked edge sharpener. It is easy to use and works great. Below is a link to their sight and a link to their forum. https://wickededgeusa.com/ https://knife.wickededgeusa.com/

Thanks Jeremy!

I made a stand with a hoist. It makes repositioning the block a lot easier.

Thanks Alan!

Zen, why does one end need to be closed?