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

Worked as I expected and only 1/3 price as most at the hardware stores.

Due to the fact that has no pin support the center part with strip out if you’re trying to drill through something other than very thin material or drywall type stuff. The Allen wrench supplied for the drillbit itself is not the right size. Therefore it’s strips. The drill bit falls out of the pilot because it cannot be tightened correctly. Did not work and was returned.

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.

the threads spun out of saw first use. I used the included arbor and it stripped the threads out of the saw on the first use. Most arbors for hole saws of this sixe use a arbor with pins to keep the blade from twisting on the threads but this one did not, so get what you pay for I guess.

I used it to cut drywall for recessed LED lighting.

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.

Not a good buy. Dulls very quickly

Only used it a few times but it held up well

I got this to install these: https://www.amazon.com/gp/product/B087JL1W9M/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1 It is perfect!

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.