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

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.

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

put in holes in ceiling for canless can lights. half the ceiling was drywall the other 3/4 inch knotty pine. after 10 holes still sharp and easy to use. I attached mine to a 1/2 inch hammer drill with a side handle for extra stabillity, no problem.

Needed this to install fans in a partition wall in an electrical enclosure. I usually buy carbide toothed saws. But this worked splendidly. Cut through two plates at once multiple times. And it never overheated and remains sharp.

Not sure what others are doing wrong... some of the reviews complained about strength of the mandrel and such but I really put it through its paces drilling at least 7 through various layers of old siding and the sill without an issue. I really does bite hard so for the 5.5 bit Im glad I had a high torque low speed drill. Note this mandrel on the 5.5 will need a 1/2 drill chuck at least (typical 3/8 wont fit).

I purchased this for cutting speaker holes in fiberglass (boat) I didnt want to spend $50 at one of the big box stores. The hole saw is good quality (better than expected) I would not hesitate to order another one.

We got this to help us make corn hole boards. Makes quick work of it! Just attached to a typical cordless drill and went for it. Worked for us!

Kit includes 2 drill bits, 1 for wood & 1 for metal. Fits a 3/8 inch chuck. The box arrived in great condition but the wood drill bit was broken in 2 pieces.

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...

Very sturdy and durable. What youre cutting will get stuck but there are holes to push product out.