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

Didnt use this item, as the arbor is way off and would have resulted in a very messy and oversized cut.

Not a good buy. Dulls very quickly

I used it to cut drywall for recessed LED lighting.

This saw and arbor feel solid and looks like it’s a good price/quality ratio.

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.

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.

Arbor shank is soft and will strip off easily. I cut 2 4 holes and the arbor is shot.

Bought this to drill holes for corn hole boards I make. Works decent for this task, but I would use it on metal. The spring on the drill is a bit odd and I am not really crazy about it... I honestly dont think it will last so not too worried about it. I am also not too crazy about how the drill holder mounts to the saw portion. The quality of the saw seems good and will last for my needs. Overall, for the price and how I use this, it works fine and I happy with my purchase.

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.

Works pretty well. Not extremely sharp but has large enough teeth that the average person can sharpen them with a small file if need be. It’s quite well-built and has worked well on a dozen holes for me and plywood and sheet rock.