Hole Saw 8-inch Metal Hole Saw Kit Set Bi-Metal Hole Cutter Drill Bit with Sharp Teeth for Drilling Holes in Wood, Plastic, Drywall, PVC Boards

This hole saw cut a beautiful round hole, in thick plastic, wallboard, and plywood almost effortlessly. It is very sharp. It feels heavy, more so than the cheap blades I previously had in my tool chest. The replaceable center drill bit worked well, and I was pleased to find this hole saw came with two extra replacement drill bits AND with the hex wrench to use when the bit needs replacing. I plan to find other diameter hole saws by this manufacturer. Don't worry about this being made in China. It is NOT a cheap tool, as some Chinese exports are.

I got this because I needed a 75mm hole saw to drill a hole to mount a small fan. I was drilling though hardwood. The bit did a great job and produced a clean hole with minimal splintering.

Purchased this to install some recessed LED lights into a garage ceiling.- Diameter was accurate and it fit the exact application I needed- For drywall, it was exactly what I expected, and what I needed.- The arbor is fine, but I had some issues with it. At first, it would not stay in the saw. Every time my drill stopped, the saw kept spinning out of the arbor. Now that my project is done, I'm stuck with the opposite problem. I cannot figure out how to get the arbor out to store the saw more easily.- So far, I've done 9 holes in 5/8 drywall and the saw seems nearly as sharp as new. From what I read on other reviews, this is not normal, so don't necessarily expect the same.For the price, it was exactly what I wanted/needed. It is a great budget hole saw for small projects.

Price was right, and it worked well for cutting into my cabinet and plaster ceiling for running hood vent ducts.

Worked like a champ...i used it for cutting hvac sheet metal then used it for wood.I have not noticed a drop in performance

My girlfriend and I decided to take on a full bathroom remodel. I'm a simple weekend-warrior, youtube mechanic/dyi'er so no professional experience going into this project. We installed an exhaust fan in the bathroom that required ventilation to the exterior of the home.I was nervous to drill a 4" inch hole through the side of my house as per the exhaust fan duct requirements but this attachment, with how nicely sharp the teeth were, didn't give me too much time to hesitate after I started drilling as it went completely through my cedar shingle and 2 pieces of plywood exterior within about 15-25 seconds. I was really impressed with how sharp it was and how perfectly clean the cut was. I gawked at how much similar hole cutters were at the big box stores and took my chances on this one and would easily take that chance again.

Reviewing the Rannb 90mm/3.5inch hole saw.----------------------------------PLUS: Diameter is very accurate. This hole saw comes with a shank that fits my 1/4 inch drill.----------------------------------MINUS: Not very sharp out of the box, and gets duller quite quickly. Cutting through 3/4 inch baltic birch plywood, the saw started "grabbing" about 1/4 inch into the first cut. Reducing the downward pressure to a minimum helped, but it still took about 2 minutes to cut the first hole. Second hole took longer, and by the time we were at hole #7 it took about 5 minutes to cut through. By then the blade was so dull that it was basically grinding through the wood (as opposed to cutting). The sawdust was very fine, about what you would expect from #220 grit sandpaper. Also, what looks like anodized coating on the bit turns out to be paint, which burns off from friction (with attendant pleasant burned-paint smell).----------------------------------OVERALL: A cheap bit that worked for the intended purpose of cutting 7 holes, with probably 3 or 4 holes left before the bit goes into the trash. If you need a bit for a small number of holes, and are willing to drill very slowly, this would be a reasonable choice given the price tag.

I used this twice - on a desk we bought from Pottery Barn and another we bought from Restoration Hardware. Both were missing a grommet... this was perfect since it made the exact size hole we needed. Easy and affordable.