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.

Worked perfect on 1/4” S/S plate. Fabricated a base plate for a swimming pool ladder.

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!

Nice product at a reasonable price

I do a lot of truck frame modifications, these bits save a lot of time.

worked fine for installing a honda gx270 starter in a northstar 5500 generator

Needed this to isolate broken screws attaching my deck stair treads so I could replace them. Using a 3/4 thick wood template to guide (could not use furnished centering drill as it would contact broken rusty screws) was able to remove old treads leaving the 5/8 core which I then split with a chisel and removed.

So typically, a hole saw is a couple mm’s over what it’s supposed to be due to poor teeth alignment. However, this hole saw is PERFECTLY 48mm. go figure… 6 stars

I used my 21mm hole saw to drill 16 holes through 3/4” thick steel plate. Eight were set up and drilled on a Bridgeport mill. Eight were drilled by a cordless drill in the field. I did not notice wear or loss of performance at 16 holes. The pilot bit overheated since it drills faster than the hole saw. For thicker material, I recommend through drilling a pilot hole the same diameter, so the pilot bit can act as a guide and not have to work so hard.

Excelente producto y servicio.