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

It was needed.

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!

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.

If you have an arbor already that works with your tools you most likely wont need this one. I have a small hole saw set, but I chose to buy this saw with the arbor in case the ones I have did not fit. Turns out the arbor with this hole saw is too fat for any of my drills. Fortunately my existing arbors fit perfectly.

I really liked this product well worth money

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.

Nothing

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.

I have used this type of hole saws for many years with varying success. This one did a GREAT job on the project that I was working on. I needed two holes cut, but a chest freezer is insulated and so 4 pieces of metal had to be cut and this saw went through the metal on the outside then through the insulation, and out the other metal side with ease. There was also copper tubing hidden in the insulation on both holes. This saw cut through all of this and the teeth remained sharp as new when the job was finished. ( Im making a fish smoker. The Reds are starting their run up the Kenai River here in Alaska)

Hole saw is well made and cuts nicely, but is too shallow to be of any real use when trying to bore through 5/8 or more plywood. If it was just another 1/2 inch deep it would be a fantastic tool, but as it is it will end up in my box of unused but cant bring myself to throw away tools.