Mollom Heavy Duty Carbide Hole Saw, Hole Cutter cuts Stainless Steel, mild Steel, Iron, Copper, Brass, Plastic (3 76mm)

Cuts great even at full drill speed! Recommend!

For the price I thought this was a throw away but it was quite nice. Have not subjected it to repeated use but surprisingly good.

I only had 1 hole to cut, but it did it fast, clean and easy.

Im converting a van to a camper and needed to cut a perfect hole for the electrical inlet for 30A service. Drilled right through the side of van with no problems. Has a replaceable drill bit and spring to push out the piece you cut out. Definitely worth the money!

I used this 13/16” hole saw to drill (22) holes through 1/2” steel plates and structural beams. It worked flawlessly, and so much faster than conventional hole saws. I used one bit for these (22) holes and it still looks good. I kept it cool by continually spraying WD-40 on it and not forcing the bit through the metal. Take your time, run the bit at a low speed, keep cleaning the chips out of the hole, keep the bit cool, and let the bit do the work; you will be very satisfied.

Granted it was just aluminum, but I had to cut through some half inch stock. This thing cut like it was butter. No Chatter, grinding, wobbling, binding, smoking, burring, or chipping. I was impressed.

Inner and outer parts of the drill bits are not concentric to each other.

Was missing set screw and I can only return it. :( Better QA before packaging would have been nice.

Got the job done

Very good drill bit, cut fast and did a great job