6 1/4 inch Hole Saw, Bi-Metal & Heavy Duty Hole Saw with Arbor Mandrel, Hole Drilling Cutter for Cornhole Boards, Metal, Drywall, Plasterboard, Wood and Plywood

The kit just arrived. The mandrels do not fit a 3/8 inch drill chuck. Is a 1/2” chuck required? Where’s the support phone number?

Dont expect this to last you a long time. We have used one blade and it was beginning to dull before we even cut through the side of a cabinet (particle board, not even hardwood).... So, I expect well get about one use out of each size we have to use. Didnt expect it to be disposable but thats about what it is. I worried when I got it because the shank was huge .... but the chuck on my husbands Craftsman did manage to open enough to hold it - definitely a 1/2 shank on the mandrels.

I got these to help with our kitchen remodel. We installed LED puck lights in the overhead up above our upper cabinets. The hole saw zipper 6 holes through the plywood. Very fast cutting. Nice clean holes. The hole saw remained plenty sharp after drilling out the 6 holes. The storage case is also very nice. It closes very securely keeping everything neatly organized and ready for action.

I purchased to cut thru a steel door all I got was a lot of sparks

This was bought for my spouse. He has not had a chance to use them, but when he does, I will update my review.

Bought this set to do a plumbing project, but I also wanted to have a variety of sizes on hand. This seemed like a nice homeowner quality set. looks very nice and complete...but you better have a drill with a 1/2 chuck. They give you two mandrels in the set and I figured the smaller one would fit my 3/8 drill. Nope. They are both too big! Luckily I have a big hammer drill with a large chuck so I was able to use the set for my project. Thats all well and good but there are a lot of places this monster drill would not fit. I only used 1 size for three holes and it seems to cut clean without much effort. I cant speak to longevity, but quality seems reasonable at the price. Bummer about the mandrels.

I got the bi-metal set and so far they works absolutely perfectly

Broke one of the supplied bits on my 3rd hole. Installing a new door lockset. Expected better for the cost.

Use the hole saw once and all the paint chipped off. poorly made and dulled the first time I used it on wood. Get the better pair.

Used a dozen times and no issues so far