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Thanks for posting, very interesting!! Youtube had problems loading your video. I'd like to see a photo of the sliding pot and a wiring diagram. It is really nice to increase the speed as you get a

These are abrasive blades. Abrasive work for the cut-off job because only a tiny part of the blade is in contact with the metal. Abrasives don't work as well for drilling holes in metal

Glad to know that my mini is not the only one that gets pretty loud. :)

Thought this may be of interest.A mod I did 2-3 years ago. https://www.youtube.com/watch?v=pTgd5c6rXr4 https://www.youtube.com/watch?v=pTgd5c6rXr4 Sorry, for the quality of the video as I am not a

I have one of these at home. I want to put it on my 14" Dewalt electric chop saw, if it works, it would be great. The electric is no where near as fast as the gas saw. I stopped using the dewalt much

Thanks I been looking for something like this my wife does not like the smell of burned carbon. One of these blades should do the trick. Thanks again.

We also have 14" diamond blades for rebar on the big gas powered cutoff saws, but again, the guys think they are masonry and not very goo for that. http://amzn.to/2gRJ6We http://amzn.to/2gRJ6We

I use these occasionally, they work quite well. they seem to disappear from work so i dont know how long they last. Most of the guys think they are for masonry. Nope, cut steel with a standard angle

Mario, You can successfully drill through 62-64 Rc hardened steels using shop made carbide spade drills. The spade drills I use are made from micrograin round carbide tool blanks. The geometry I use

Diamond hones are great for hand sharpening - the temperature stays low enough to not damage the hone. (They're made by embedding diamond powder in nickel plating.) Diamond drills/hole saws are a

Hi Chris, <SNIP> An expensive experiment is to burn some [diamond] with a match </SNIP> This is actually a cheap and boring experiment - nothing will happen...... All the best, Ian

Admittedly my experience ?with diamond honing of steel is all hand work, but nothing I know says diamond won't ?work. Water for coolant is the way to go. Lots of water. Bill in OKC? Sent from my

Hello John, I will respectfully disagree with your comment of the drill bits from HF (Harbor Freight). Now while I did have a small drill bit set from HF back in the late 70's that was of very poor

Those are small hole saws. They have a hollow section in the center. And no they would not work well for drilling steel. The from looking at photo at the bottom of the ad, they don't appear to be of

Be careful sharpening carbide, it's a fine powder bonded with nickel. Breathing nickel dust is not good, wear a mask. -- Jerry Durand, Durand Interstellar, Inc. www.interstellar.com tel: +1 408

That is impressive Mario! I had to cut fins in an aluminum Stirling Engine cylinder and I fabricated a blade from a carbon steel (Chinese) hacksaw blade. Ground the end leaving a tit on it. Heated it

Bits in the link will cut hss but not drill it very deep before you are replacing it with a new. If the hss is hardened you can use a carbid drill but that isn't fun either. Tell us your plans and we

They make solid carbide bits. Not as hard as diamond but the shape is correct for drilling metal. I've only used really tiny solid carbide bits for drilling holes in epoxy fiber glass circuit board

No, diamond will not cut metal very well. That is because the cutting angels are random. They cut glass and ceramic by fracturing it and metal does not fracture. There are abrasives blades that cut

After the previous, rather surprising, good results with the (then) .032" very thin parting tool, I?m considering going for broke. Parting off 1" CRS with not a wince from the machine, smooth curly