Amartisan Hole Cutter, 1-5/8" to 8" (40-200mm) Adjustable Hole Saw Cutter, with ABS Dust Shield for recessed Lights, Ceiling Speakers, Vent Holes

The media could not be loaded.  I love I have one just like this o e bit like 10 years old and they are great I do remodeling for a living and so far this is the best remodeling tool I have on the electrical side

The price was great and it worked well. I’m close to 250- 4” holes and 5 were in stucco with supplied blades. Will need to buy another one soon only because we’ve dropped it a bit!

It worked as you’d expect for the price. Not very sturdy. I did my 1st hole no issues. Second hole was a slight blunder. I’d simply say check thoroughly each and every step of the way. Great for small projects def not a large or commercial project at all.

Great value for this quality….I do use calipers to get each side to the exact same length. Have installed 4 can lights with perfect holes. Drywall is not something you want to mess with without the right tools you will end up with a mess and costly and time consuming to repair…

Worked perfectly and kept all the drywall mess in one place! Be sure to tighten down the bolts on the cutting bar and recheck the tightness after cutting several holes.

I have 50 years experience as a carpenter/remodeler. This tool is well made and has multiple pilot drills for different materials, including several carbide bits, and several sets of different cutters, all arranged in a convenient storage box. The central arbor/driver has a spring to insure continuous contact of the clear acrylic cover with the ceiling, and the cover is held onto the arbor and spring with a reverse threaded nut. I had one goober when I didn't tighten one of the cutters sufficiently and almost ended up with a larger hole than desired. I also neglected to keep the cover on the ceiling until the dust had completely settled.

It's been able to get the job done but there are definite quality and other flaws in this hole saw. First, it came with no instructions whatsoever - not that it's overly complicated if you're mechanically inclined but there are some subtle details that it would be easy to get wrong. A few other issues:1) The cross bar with markings to make sure the two bits will cut an equal radius can't be centered. There's a dimple drilled into the bar and they didn't get it centered. Even if it did center correctly, the measurements don't align with reality. Rather than relying on the markings, manually measuring off the center drill bit will ensure the cutters are positioned correctly.2) The largest of the included carbide drill bits had its carbide tip welded lopsided. I wouldn't actually use any of those bits as the pilot for the hole saw anyway because their shanks are too small and that largest bit is actually too large of a diameter for the shorter pilot bits so I can get along without it.3) The rubber gasket is too thin to effectively seal off the dust. The bowl still catches the vast majority of debris and contains some of the dust but a hollow rubber or even foam gasket would be better.

Good idea but requires some babysitting. Cuts pretty well but I had to reset and tighten one of the blades a couple times in eight holes