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 for the sole purpose of cutting a specified 4” hole in the bed of my pickup for a B&W turnover gooseneck. It cut the hole in the bed and then I used it to cut a hole in the bed mat (as you can see in the picture). I’m happy with it because it met/exceeded my expectations. If it cuts anything else in the future that’s a bonus.

not so great for stainless steel

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.

Very heavy, does not cut through plaster. Very dusty. Blades already doled out after using it for seven ceiling lights

It broke on the first use didn’t even make it all the way threw before the holesaw threads striped from the bit

Didnt work well.

No problems easy set up and use

I bought this hole saw to use for the construction of some washer boards. It cut all the holes very clean and worked great. I have not used it on metal yet but on the plywood it cut it like it was butter.

No problems easy set up and use

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.