Bi-Metal Hole Saw Kit High Speed Steel M42 with Cobalt 8% for Metal and Wood 13-Piece General Purpose 3/4" to 2-1/2" in Quality Carrying Case

I needed to cut a couple of different size holes in my metal barn. Having the full set made it easy to get the right size for the job. They cut through just fine. The only thing that stopped my progress was that the large adapter has a snap ring on it, and I didn't have the tool to remove it. It's all good now, because I not only have a nice set of saws, but I have a snap ring tool as well.

I'll confess that I almost never use a hole saw, but when I do need one it's usually to drill a hole through a 2x4 or a cabinet. So when I used this set to drill umbrella holes through my new picnic tables, I was surprised that the 2" hole saw blade couldn't quite make it through the 1-1/2" table top. Then I realized that a lock ring around the drill bit was preventing it. At first I thought that it was a poor design, but then I realized that by drilling the hole from both sides avoided splintering and produced a cleaner end result.So, I would have to say that this product does the job. As far a durability? That's a future review.

High quality hole saws in a very solid case. I have used them on wood with no issues. I have an automotive project these were purchased for to drill into metal, which I have not yet done, but expect good results. As a free bonus they sent me a rotary tool accessory kit that was unexpected and made this purchase an even better value. Thank you!

Es tal cual las fotos se puede trabajar bien, lástima que el eje o soporte de las copas hay que andar dijarandola par trabar las copas cuando lo compre no me percate de ese detalle, pensé que era con quita y pon (resorte) pero a la hora de estar trabajando a trato esto complica un poco, en fin es muy útil las copas , igual quede algo conforme.

These cut through 11 gauge steel square tubing cleanly. I suggest using in a drill press or other stable jig when cutting through thick metal since I broke some teeth off by accidentally cantinf the drill on one of my cuts. Be sure to use the slowest speed and frequently apply cutting oil.

I used the 2 1/2" hole saw while building HM Camper. It went through 1/4" sub flooring, 3/4" CDX plywood, 1 1/2" insulation, and 16 gage galvanized steel all at once in one shot with ease. Took all the work out of it. :)

I just received the product, in record time, I will say (shoutout to the packers and delivery people!), and have just started using it. So far, so good, as the headline says. It seems to give a good bang for the buck. I'll come back later and fill in based on my experience.PLEASE NOTE: I want to request a drill press speed chart for the saw blades. I found several on line, but want to use the speeds recommended by KHCRAFT for my safety. Thank you.

Do Not Buy!!! Before you purchase this saw blade kit, do yourself a favor and look over the negative reviews. I found my problem to be consistent with that of a few other negative reviews and after 6 weeks of returning the item for a refund have not heard back from anyone. The customer service is nonexistent as there is no way to communicate with them other than thru a review.Initially, I thought I had received simply a defective saw kit and returned it for another. Upon receiving the second set of blades, it turned out that it, too, had the same exact problem as the first one; the pin holes for the larger size blades are way out of alignment making it impossible to connect the blade to the center arbor drill bit and completely useless. Needless to say, this is no doubt a design flaw or manufacturing issue. It would not come as a surprise if the seller is not already aware and just continues to sell the item hoping the issue with the larger size blades gets overlooked until the return date has passed. The customer service is nonexistent.If you have already purchased this saw blade kit, check the arbor fit on the larger blades...