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

I used this to drill a hole in my bumper for a block heater. I thought it would take two due to quality, so I bought two of these. Turns out it is of great quality. I will use this for years

Product was as advertised

Cuts great even at full drill speed! Recommend!

Got the job done

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!

2 of the 3 broke before I cut 4 holes. Finished with standard drill bit.

Pilot bit broke halfway through the single hole I needed to drill in my new stainless steel sink. Couldn’t find a perfect size replacement bit at local home store, so hole ended up wobbling and being wallowed out. Luckily what I was putting in (glass rinser) covered the oversized hole.

So far I’ve cut 6 2 3/8” holes through 1/4” aluminum. Using a little cutting oil. Works well. I accidentally broke the pilot bit. The pilot bit is 15/64 (6mm) pilot bit, available on Amazon.

there nice and sharp not a step drill bits but cut i figure about a year for replkacement do good cheap set to have

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