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

First.. Dont expect the parts to be compatible with your current hole saw set up. My others are mix and match; this one is different. But it does come with all the parts needed to put it into surface. . Second... I dont plan on many cuts, most will be in drywall. It should be fine for that purpose. You will have to provide your own dust protection or cleanup after words. 6 makes some drywall dust. . Third.... It worked perfect for the LED flush mount lights I bought here on amazon. I didnt worry about a dust catcher since I was in process for other things in the room.

Very nice for the price and worked for my cornhole boards.

Great price and very good quality. Cuts rapidly through 3/4 material. With proper care should last a long time.

Needed an inexpensive hole saw for installing through the gable vent, and this did a quick work of it. Cut fine through wood siding, vinyl siding and drywall. Spring on the drill shank helps pop out the pieces it cut.

Works great for ceiling lights

Used it to make a feral cat house. Cut right through a double sided cooler & didn’t leave rough sides to the cut.

worked flawless for job .

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

The bit did not fit my Makita FD05 3/8 drill.

I bought it to drill out a plastic 55 gallon drum worked great!