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

I got it to use when building speaker boxes, it works fine

Very dull. Threads need to be reversed so the arbor doesnt go spinning off. Just made it through 1 hole in 1 press board. Would buy again.

I have no complaints I used it to cut over a dozen hole in 1in thick hardwood for a project. Works great

Arrived quickly, works great. Cutting 4 hole for soffit venting, this hole saw cut through cedar siding and celotex sheeting easily. Used with Maurice Franklin 4 round aluminum louvers and they worked perfectly together. This saw uses a 3/8 shaft so your cordless drill can be used.

Don’t understand the negative reviews??? It’s a cheap hole saw that does what it’s supposed to do… I’ve cut 12 perfect 4” holes for gang boxes and the last hole was as good as the first . Some were in sheet rock some were in 3/8” beadboard, all clean and perfect! And I paid less than $15.

Well it makes holes

A bit heavier than anticipated, but this leads to longevity. It did the job well.

It didnt cut my test piece of wood. Also didnt fit my corded drill, I had to borrow a cordless drill. Why the chuck was slightly bigger on the cordless drill than corded drill, I dont know.

If u plan on using this buy a different arbor. First use the arbor strips the threading. U need a arbor that has the 2 prongs poking into the saw. If u don’t, to much force and its game over. It’s almost worth just buying a saw that comes with the better arbor. Even going slow on drywall the thread will strip. I used mine for a hole for a dryer vent and I couldn’t even make it past the drywall.

bought to install dryer vent, going through plaster and lath, ALL teeth were smooth and rounded just in the plaster (old horse hair plaster, very soft) would not cut through to outside, had to run to hardware store and buy another brand to finish cut, obviously not hardened teeth, or bi-metal, waste of money