Luomorgo 89mm/3 1/2 inch Hole Saw, 1 1/4 inch Cutting Depth HSS Bi-Metal Hole Cutter for Wood Cornhole Boards Plastic Drywall & Metal Sheet

I ordered Luomorgo 3-1/8 inch drill saw. The aligning drill bit arrived broken but luckily it inlude two more bits, so no foul. Was not a very challanging task just cutting holes in plastic. Worked out fine. And for the price cannot complain.

Bought this hole saw to enlarge a hole in my garage for a vent fan. It states it is not quite 3” in diameter but it worked perfectly to make the hole 3”. Garage has a “double” wood siding type design and is made of good hard wood as my garage is quite old.This saw made quick work of cutting the wood out and suffered zero wear to the saw itself. It is a good quality product.Only downfall is that the arbor will tighten up to the saw making it very hard to remove it but that is not really necessary as it is a single saw.Box is in Chinese but the saw itself is clearly marked in English.Comes with TWO extra bits as well as an Allen key to loosen the Allen screw holding in the bit and is easily accessible from the top of the tool.A nice spring is with the bit which helps in removal of the plug.I’ve only used it once so far but it seems to be a well made product.A+ would recommend.

I had no prior experience with hole saws, and some info from the other reviews made me very confused. After buying this and few other products, maybe this could save someone some headaches. This hole saw includes a 1/2" arbor and two 3/8" drill bits. You could use the drill bits directly on the hole saw without the arbor, but there's a chance that due to the heat and torque it could become fused in the saw and impossible to remove, which is what happened with mine. Judging from other reviews, the drill bits sometimes break, so then you would end up with a useless hole saw.The 1/2" arbors have two metal cylinders that are meant to stick into the holes adjacent to where the drill goes. These prevent the drill from over-tightening so that it would always be possible to remove afterwards. The general wisdom is that 3/8" drills are only good for up to 1-3/8" hole saws. For example, Dewalt doesn't even manufacture a 3/8" drill for large size holes. However, some other companies like Milwaukee does. I recommend getting the 3/8" Quick Change Large Hole Saw Arbor (49-56-7250) for about $25 from Home Depot to use with these hole saws so that the drill bit doesn't get stuck and break. These have the cylinders that prevent over-tightening.I'm only cutting PVC to make hydroponic reservoirs, and after a few holes the paint starts to come off at the blades. The blade itself seems intact. I see the negative reviews are cutting metal or harder materials. It would seem that regardless of marketing, it would probably be a good idea to get a more expensive hole saw with carbide tips for harder materials.Of course, if you're only cutting a couple holes and this is the only size you need, then maybe you wouldn't care that the drill is stuck on the hole saw, and you could take a chance to cut the holes you need before it breaks.

I needed this to cut a hole to put vents in a trailer. It did the trick and it was cost effective. Just remember to take your time when drilling don’t go top speed.

Very nice hole saw. I used it to cut several holes in wood. I can’t speak to other materials. It’s deep enough to cut through at least 1 inch thick boards in a single cut. Makes clean cuts, and the plugs were easy to dislodge with the help of a screwdriver. The little spring on the arbor helps eject it. Comes with extra drill bits and an Allen wrench, all in a nice sturdy box. Great addition to my workshop at a very reasonable price!

Buy this if you only have a couple of holes to cut through thin or soft material. It also does not cut a full 4" hole but slightly under. Had to use a Dremel tool to make it a full 4".

Served its purpose!

What does a hole saw do if it wobbles 1/4-inch as it spins? It shakes your drill and cuts wobbly holes. And when you stop the drill's spinning, the saw unscrews from its arbor and wings across the room! Chinese garbage at its best. Yeah, it will put a hole in something, but man, this is some piece of junkl!Included in this sale were two extra bits. Both are as dull as the original and you'll need a real bit to start the pilot hole. Also there's an Allen wrench for the set screw that holds the pilot bit in the arbor. The Allen wrench is too small for the set screw, but it looks good in the package. You'll need your own Allen wrench because the bit keeps falling out of the arbor's hole, which is too big for the bit which is why this whole thing wobbles.More Chinesium on its way back to Amazon Junk Tool Rental!