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 drilled over 200 holes in drywall and I occasionally hit a nail or wood and the teeth on the bit stayed in tact. I use this to install recess lighting. Great bit

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.

Nice product came timely but no instructions

Used an extension and was able to drill through siding and joist to install a dryer vent. Great value. Same tool costs $30 at HD.

Needed to cut one hole in my soffit foot an exhaust fan. Did the job, though if I needed to cut more holes I’d buy something of better quality.

I purchased this saw for my outdoor recessed lighting project and the saw would not cut through my soffit. Had to use additional saws and drills. Complete waste of money and time.

Ive only used it once. Well see how it holds up but for the price it served my needs. And beats having a repairman come out

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

Doesn’t work... do not buy

Nice product came timely but no instructions