Luomorgo 4.5 inch Hole Saw, 1 1/4 inch Cutting Depth HSS Bi-Metal Hole Cutter for Wood Cornhole Boards Plastic Drywall & Metal Sheet

Havent tried on metal. Works well. The arbor is holding up, so far.

This hole saw worked perfectly. I needed one to cut 2 holes for recessed lights on my back porch. At the big box stores these blades from Lennox and other brands are around $45-$50 for 1 in the size I needed which was way to much for the one small job I was using it for, especially since the lights only cost me $15 each. So Amazon to the rescue! Ordered this and had it next day and the job is now complete. If you’re a pro using this every day maybe the name brand is worth the extra money, but this was only needed for 1 specific job and it worked great. Highly recommend.

good product

If all you need is one hole and do not care that the saw wobbles excessively - namely you dont care what it looks like or how precise a hole you need, this could work a few times on soft wood. If you need a smooth hole cut in good wood in an exact location or want to use it multiple times (not hidden behind a wall for example) pay for something better. Not returning because I had to use it to find this out. Luckily I did a practice hole and avoided trashing the cabinet for which II purchased a 70mm hole saw. Now I need to buy a better quality hole saw to do the job and keep this junk, too. If only there was -1 stars for accuracy and value. Two stars if you need something cheap for a hidden hole.

I used this to cut 15 recessed light holes and still has life left. I did use it on plaster and it cut through about half way. So good for drywall not good for plaster. I would buy this again

I bought the 155mm/6.1 in size to cut the exact hole needed for the Ensenior 6 Pack 6 Inch Ultra-Thin LED Recessed Ceiling Lights (which I really like). This hole saw makes the job much easier. As noted by others, if not careful, this saw can catch and give some nasty kickback. Also, the 2nd arbor that comes with the larger sizes is really nice in its design using a secondary ring to move 2 pins into the bottom of the hole saw; if only the pins matched the holes in the saw so that it could be used, this would definitely be a 5-star item. As it is, Im hoping the arbor will fit something else that I have.

I ordered this in 120MM and a JIECHENG 4. This one is much heavier and not just due to diameter, It also comes with 2 arbors, my preferred with the side pins and the simple thread in and a total of 3 bits. The JIECHENG only has the simple thread in and no extra bits. I usually run Milwaukees but didnt feel like heading to the store for a 4 and a 120mm just wasnt going to get stocked here. I cant tell you how either will stand the test of time as Im going to just add some vents/ducts through plastic and thin wood a few times and then let these collect dust for the rest of time. Still weight + extras + being 1$ cheaper makes this a winner for someone who only needs to make a few holes. Sorry that I will not be using it more so I cant give you a better idea about long term value. I dont think anyone runs a 120mm on a small drill so I do not think the extra weight will be a problem.

Using it to cut holes for hydroponics rails. Makes hole just big enough for trade gallon pots to fit in. Only cutting about 1/8” through the top of rails but does the job and it includes an extra arbor that fits my Lennox hole saws too.

I needed exactly 4” in a hole saw. As it turns out, 100mm is labelled only 3 15/16”. That being said, it makes perfect 4 holes which have worked for all my 4 mounting applications.

I recevied it yesterdya to drill 4 1/4 holes for my recessed lights. But when I screw the drill bit in the center and attach it to my drill, when I turn the drill on the cutting circle inscrews from the drill bit. UNless my kit is missing something....shouldnt there be a nut that screws on the inside of the cutting circle to keep it from spinning off? I mean I think I am a little handy, but I feel like an idiot.