ABuff 4 inch 100 mm Hole Saw with Arbor, Heavy Duty 38mm Depth Bi-Metal HSS 4 Inch Hole Saw Blade with Positive Rake Teeth for Cutting Soft Metal, Drywall, Plastic, Wood, Fiberboard

I have used other hole saws, and as far as cheap ones go, this is actually quite nice, worked very well, though the shank is quite large, just barely fits the chuck in my drill. Would have been a bit more convenient if it had used a 1/4 shank, then I could have used my standard extensions, which would have been nice, but its not a huge deal.

I cut the drywall with my 18V cordless drill which was a little clunky. Love the complete kit and ease of assembly. It would work better if I used the drill with a cord.

This hole saw made installing a few dozen 4” recessed ceiling lights a breeze. I also used it to punch a hole for 4” round junction boxes. Those were done through 1/2” drywall. At first the holes were a little jagged because the drywall crumbled but I think that was my fault being cautious and taking it slow. When I went full-speed beast mode it punched through clean and precise. My husband used it on a 4” duct for the dryer vent going through 3/4” Zipboard exterior sheathing - clean hole, perfection. No complaints here!

The product is good quality and comes with multiple bits, however if you want to use it to cut sheet metal holes for HVAC holes this is not a good hole saw to use. Basically the bit just keeps enlarging the pilot hole and the saw itself just mars the surface. Ended up using a jigsaw following the mar the hole saw made. I suspect the teeth are too large.

This hole saw cuts great and overall does a good job. Only reason I gave it a 4 instead of a 5 is because it had a little manufacturing defect and due to time constraints I chose not to send it back. The set screw hole was not properly threaded and the set screw would not hold. I was able to redrill and rethread the hole myself and use a slightly larger set screw. Other than that this hole saw is a good buy.

Was on time Well packaged Did a good job

As most will tell you, with tools the old adage that you get what you pay for holds very true. I only needed to cut a few holes with it, and it did so more than adequately. For my needs it beats paying over twice as much for a better quality unit.

It was needed.

It was needed.

I really liked this product well worth money