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

Used this for outside high hats and inside high hats. Works perfectly. Great buy.

Impressed with the weight and sturdiness of this hole cutter and especially the arbor. The center of the arbor screws on and then two pins extend for steady and secure grip. So far I have used it to cut 3/4 MDF and it zipped right through it. I was surprised how smoothly it cut. Good value for the money.

I bought this to put the hole in cornhole board. It cut through great. Glad I had a big drill with side handle to keep it level and from hurting my wrist though.

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.

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.

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?

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!

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.

I bought this cheap 5 holesaw to cut through a 1 thick piece of steel. Not just any steel, it is 4140- a chromium molybdenum manganese alloy. But wait- not just any 4140, it is hardened 4140, 32 on the rockwell C scale. A lot of 4140 is sold in the annealed state for easier cutting, but then needs to be hardened afterwards to gain the strength benefits of this alloy. I verified the 32Rc myself, cause I believe it matters for what Im making. Anyway, this holesaw cuts it fine. I ran it at about 70 rpm, a little faster than 1 rotation per second. A little less than 100 fpm linear speed. Using a pecking motion, lubrication, allowing chips to clear. Many drill presses and most hand drills just wont go that slow. If you put this in a hand drill and think youre gonna cut even a piece of sheet metal, its going to be hard to control, and if you spin it fast (like the 600 rpm speed that seems slow in your 1/2 drill) you could probably dull this in seconds. That is just the nature of a large diameter cutter like this. If you overspeed it in metal, you WILL ruin it, in seconds. This saw isnt magic metal, and neither is one that costs 3 times as much. This was used in a milling machine..it is rigid, and can go slow. If used to cut a hole in your ceiling for a lamp, you could get away with a lot, none of this applies. The saw wasnt real round...I checked it and improved it a little by hitting with a hammer, checking, hitting, etc. BUT- more expensive brands are no better at all, they are always pretty out of round..unfortunate, but good enough. Tight quality control costs a lot. You want a $150 hole saw thats somewhat better? Ill deal with a cheap one, myself. It is a roughing tool, no more. It pains me to see most drills and holesaws oversped by users who then dull it and blame the tool!

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.