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

Cuts drywall without damaging wall finish Proper size for electrical box

So why ask me to write a review if you won’t post it. Just telling you like it is. So if it is neg. You won’t use it . I’am glad that works for you , will think twice before I order again.

I needed this hole saw for an at home DIY project and it met my needs with no problems. Having sold/used commercial brand hole saws in my prior life I can tell you this saw and arbor are not the same quality as the red box or blue/white box products, but you are also talking a fraction of the price. Overall I am happy with this product. It fit my needs for a one time DIY project at a very affordable price & I would recommend it to a friend with similar needs.

Was only sharp to drill hole for one hole in pine. Second hole wouldnt cut.

I was gonna return this and vent a different direction where I could cut the hole through a single piece of wood. I thought I could use my jigsaw. Changed my mind again and opened the box and found nothing to secure the drill piece to the saw piece . Just the bit saw and hex wrench. totally unsafe and wouldnt work. Thank you Amazon for free returns!

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.

Save yourself some time and buy a name brand 4” hole saw bit. This item arrived and threads were cut in the bit at an angle. Kind of hard to use a hole saw when your pilot bit is at about a 60-70 degree angle when it should be a true 90 degrees. Wtf??

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

No problems easy set up and use

Exelente inversion