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

We were putting a dead bolt in a metal clad door. Bought a supposed metal drill bit at a local hardware store, lots of sports and it put a dent in the door. This bit went through the door in no time, absolutely no problem.

Very nice hole saw. Really tough. Ive cut thru plywood in a few seconds, but it does leave a ratty entrance and exit. Thats OK for roughing in plumbing or electrical work, NOT for veneer work!! This will not cut thru a 2x4 without stopping to remove the plug from the cutter a couple of times. Cuts Aluminum like butter. I use a cutting fluid made for just aluminum. I have cut 3 holes in 1/4 steel plate with no problems. Get your RPM way down for steel. Around 350 to 440rs. Again, I used a sulfur-based cutting oil for Ferris work. The hole saw is as sharp as day one.

I used this hole saw to drill 2 in dia holes in 10 ga cold roll sheet. Having read the reviews, I understood that the pilot bit was crap, so I drilled a 1/4 inch pilot (much easier to do this prior to using a hole saw anyway). I used the bit in my radial arm drill press with cutting fluid and it cut much better than the typical bandsaw type hole saws. The saw cut evenly and consistently, resulting in holes that measured 2.030 dia. Im happy, so I ordered another one, just in case, as I make quite a few of these pieces. Shipping was quick.

Bought 2 different sizes and extra bit pack. Complete waste of time and $$. I am experienced tool and craftsman, this is worst cutting product i have seen all my life. The center drill bit is so brittle it breaks immediately with little to no cutting pressure at all. Bad, Bad Bad!!!

These hole saws are amazing. Quickly makes holes in thicker steel.

The pilot screw breaks easily. Was just trying to go into 4 PVC Schedule 40 and the bit breaks like nothing. Seems to be a good product, but the pilot drill bit is very flimsy. This is paperweight now until I can buy another pilot screw. Not strong at all.

Well it drilled 2 holes fine, then broke. This was the 3 1/8 flavor, chucked up in a drill press, so I couldnt have bound it up too much the belts will slip. You get what you pay for.

Liked how nice it cut

Made one hole through 5/4” decking spring came off and blade became extremely dull! If not for wood my mistake but it’s definitely a fight for the second hole!

this saw cuts so fast and clean I was worried but took a chance on it and am glad I did I will be buying another size today