JIECHENG Bi-Metal 4 inch Hole Saw with Arbor Mandrel for Cutting Wood,Cornhole Boards,Drywall,Plasterboard,Plywood,Steel,Aluminium,Brass,Copper,Zinc,Tin,102mm

Bought this to drill holes for corn hole boards I make. Works decent for this task, but I would use it on metal. The spring on the drill is a bit odd and I am not really crazy about it... I honestly dont think it will last so not too worried about it. I am also not too crazy about how the drill holder mounts to the saw portion. The quality of the saw seems good and will last for my needs. Overall, for the price and how I use this, it works fine and I happy with my purchase.

The price was pretty good but within a minute of use the spring around the central bit became stuck in the wall and shredded. Also, the central bit came loose a dozen times. Had to keep fishing it out of the wood and retightening it with an allen wrench. Ended up getting the job done, but not a long term tool.

I used this hole saw to install an electrical box in a plaster wall with 2 X 6 lumber behind. It bored through the plaster and wood with ease.

This is a decent, cheap hole saw that gets the job done. I used it to cut holes in ceiling drywall to install remodel 6” recessed can lights. Unfortunately, this saw measures slightly under 6”, so the resulting holes were not large enough to fit the cans. I had to enlarge them a bit with a drywall saw, which then defeated the purpose of using a hole saw to make clean cuts and minimize dust in the first place. Also doesn’t last very long… it was adequate for what I needed without breaking the bank, but you get what you pay for.

Bought this to make holes in subfloor for toilet/plumbing. It chewed through strandboard like a hot knife through butter. I cannot speak to the longevity of the holes away as Ive only made two holes with it, but it seems well made and like it would last a long time/forever unl3ss its being used very frequently or commercially.

The threaded hole for the center bit was tapped crooked. Completely unusable.

This product performs as designed. I would buy this again.

Broke on first use , not much else to say

This saw and arbor feel solid and looks like it’s a good price/quality ratio.

Not the highest quality, looked like it may be a second. But it worked good to cut the holes in 1/2 in plywood.