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

Needed a hole saw to drill through 150 year old very thick plaster to install new can lights in the house were remodeling. Hole saw is heavy and very well put together. Cut right through the plaster and lath under it. Didnt dull at all. Would buy again if I need another one.

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!

Great tool for drilling hole in shipping containers to install vents. Go slow at a angle, with coolant, cause that corton steel is hard. This hole saw stands up to the test.

Cut through a 8n tractor dash with ease for a two inch voltage gauge. Go slow with slight pressure, or you might break your wrist. The cutting took about fifteen minutes with cutting oil. I would recommend this product.

Owned this 1” (25 mm) hole saw for all of 14 hours, the carbide teeth lasted about 2 minutes while drilling low carbon mild steel. I bought this bit hoping to drill 6 super smooth holes in 1/4” mild steel as I had purchased a smaller 3/4” bit from another source that worked great in the same material and much harder material. All the teeth on this bit broke off with only 60 percent of the first hole cut. Bit is Completely unusable now check the photo. For reference, I finished cutting the first hole with a regular bi-metal hole saw that was countless years old and literally missing 3 teeth. I then cut the remaining 5 holes with the bi metal blade so it wasn’t because the steel was too hard.

Le facilita hacer el trabajo

Keep the tines lubricated while cutting .

Product arrived on time and worked very well to drill holes in the fiberglass boat so we could install new electrical outlets. I would recommend.

Nice bit which drills evenly and quickly through stainless steel.. I have no regrets.

Cut fine but a weak shank that breaks almost immediately when you start to drill. Might be ok in plastic with a very weak drill motor.