5 inch HSS BI Metal Hole Saw Cutter 1-1/2 Depth with Big Arbor for Wood Metal

Seems very well made. I had four holes to cut to install a 6” duct for the microwave/ventilation hood to the outside. I was thinking at this price it might not hold up but to my surprise I think it would cut dozens of times before it becomes dull. My cabinet back is plywood and the wall is tongue and groove lumber, and it cut with no problem. You will need a drill with a 1/2 inch chuck then don’t force the cut just let the cutter do the work.

Its actually very hard to find a whole saw that is bigger than 7in in the market. This hole saw not only gives me the capacity of drill big hole at one shot, also generates surprisingly clean edges. I think this is probably due to the sharp teeth and high quality steel that this saw has. A strong buy!

When mounting the mandrel to the hole saw. The pins were hard to get in the hole saw clock to match the pins. I had to put tape on the mounting surface to get a tight fit. Secondly the set screw for the drill bit would not screw in. Had to chase the threads. There was tiny pieces of metal in the thread. Hope there is a resolution?

This is a well made 8 1/4” hole saw, very rugged. Overall. I’d say it works very well. I’m glad I bought it and it worked well for me recently. There are a couple of things to watch out for. First, be sure the drill bit is deeply seated before tightening the set screw. I made the mistake of screwing the set screw right into the center of the shaft. It was no fun to get back out, but I was able to do it. The second thing to remember is that an 8.25” hole saw is big. There are 25.9” of teeth spinning around…and grabbing the surface of the material you are trying to bore through. My drill spun around pretty abruptly when all of the teeth contacted the surface. My second two uses were much more civilized

Works well for cutting 5” discs out of 1/4” plywood. The instructions say to run it at 100 RPM but my drill press’s slowest speed is 680 RPM. I cut 16 discs so far with this bit and it did great and still cuts like a new bit. For the price this bit paid for itself already in just the time it’s saved me. Would definitely recommend for lighter duty cutting/drilling jobs.

Bought the 5” hole saw to use on 1/2 inch plywood, and in a 2x8 board. Was impressed by the quality, given how inexpensive it was. The arbor is good quality and came with two drill bits, plus a small hex wrench for the set screw. Was very sharp and have a very clean cut. Only needed it for a small job, so can’t speak to how long it will hold up after many uses. But would not hesitate to buy another one if I need a different size in the future.

Needed to cut some holes for kitchen exhaust pipe, and this worked spectacularly cutting through some pine. But, then I had to cut through the roof, and of course asphalt shingles present a problem. But, that was the last hole so I committed myself. It got through, eventually, but I dont think it liked it. In a couple years when I need to cut another 6 hole Ill give it another try, but he already did his duty so I wont complain if he takes a bit longer.

Pleased with the quality of the item. The threaded/pin-type arbor is essentially identical to those Ive purchased from Morse, Lennox, Milwaukee etc. They all have threads that do not run all the way to the back plate which means that when you screw the arbor down to contact the back of the hole saw, few threads are left engaging with the hole saw. If the pins back out due to vibration etc, it is easy to strip the threads. I wish the manufacturers would figure out how to thread the arbor all the way down to the back plate. I put a thin fiber washer with holes drilled out for the pins on first, screw down the arbor and then twist a rubber band around the hexagonal shaft and knurled pin adjusting knob to keep everything in place...

Make sure you use a drill that has a second handle for support. Go slow and steady pressure to make the hole otherwise it will bind. But after cutting through a tongue n groove ceiling for 6 holes, I will still have use of this holesaw… the one flaw is that the drillbit provided has to be tightened many times throughout use. Overall this was a good buy.

The description included a 1 1/8 saw as well for the price. I only received the 4 1/14 inch saw.