Jonard Tools AHC-10, Professional Grade Round Hole Saw Cutter, Includes Dust Shield and Case, Cuts Plywood Plasterboard Sheetrock Acrylic Up to 1 1/16” Thick, Adjustable Hole Size 2.2” to 10”, Silver

Another reviewer said this would not work with an electric drill, I had no problem using this on 5/8 drywall with a Makita 18v drill (though I did have trouble getting regular drill to hold on the shank, I had to use a 90 degree drill with a manual chuck, that worked fine. Also I used two left cutting bits so they would be symmetrical and run in the same groove.

While running wires in a previously finished basement, I wanted to avoid have to cut large amounts of drywall out. This tool makes it easy to pull out enough drywall and easily replace it with a few pieces of wood backing. Don’t hesitate to buy this.

I think I know why some of you had a miserable time using this tool. Mine came with one of the cutters facing the wrong way! The instructions dont make this clear, but as an experienced machinist I understand carbide cutting tools. The flat carbide surface must face the direction of the cut. If you lay the cutter arbor assembly in front of you on a surface, with the the drill tip pointing away from you, one of the carbide tools will be on the left, the other on the right. For clockwise drill rotation, the cutter on the left should have the flat carbide surface facing up. The left one should be facing down. That way as the assembly rotates, both cutters are engaging the material in face-first orientation. (See my first photo and visualize it rotating clockwise with the drill.) Mine came with both cutters facing up. One cutter would have just dragged through. I guess the Chinese assemblers werent trained. Also, for optimal cutting, the sharp corner of the cutting tool should be outermost, as in my second photo. But two of mine came with the opposite orientation, as shown in my third photo. Perhaps their intent was to use one of each. That way you would be cutting the inside and outside kerf in unison. Worth a try. The most important thing is to point them in the correct direction, as in my first photo. Otherwise this is an elegant solution to minimizing dusty hole cutting in sheet rock. Nice case. Fits my shop vacuum perfectly. CHECK YOUR DIAMETER SETTING AND TIGHTEN EVERYTHING WELL. Practice on some scrap material if you can, and check the screw tightness every hole.

I purchased this to cut various sized holes in my ceilings for recessed lights and whole-house audio speakers; 50+ holes of various sizes. This is a substantial, heavy duty, super sturdy/rugged tool…. It is not flimsy or “cheap” in construction. Works like a champ and the dust shield really helps contain the drywall dust. The only recommendation I would make for anybody considering this tool is to buy the version with the vacuum port to further mitigate the dust by eliminating the need of dumping it. I did not know a version with a dust port was available when I purchased this.

There was no mess/dust after drilling a hole in the ceiling.

drilling works great, but the bowl cannot collect the dusts well when I drilling ceiling holes. for wall drilling, it simply fine

At first, I was a little surprised by the price but when it arrived, I quickly discovered why. Very high quality product with a storage case and spare? teeth. I have a smaller adjustable hole saw with dust shield that I bought at one of the big hardware stores but it only goes up to six inches and is nowhere near the quality of this one. I think that one was $30. This one was $90. Not the greatest value but I dont mind paying for the quality.

Got it for Christmas Gift last year and my brother still uses it.

The catch tray is thick acrylic, durable. You want a 4 1/8 hole for a 4 pot light? Set each blade at 4 1/8... 7 3/8 hole? Gotcha bud. Comes with a molded case. This is the only adjustable hole saw youll ever need to buy. These guys actually understand what we look for in a product. A career tool.

For the price, the quality and machining should have been a little better. It got the job done, and really does keep the mess to a minimum. I do recommend a drill with a side handle. The larger your hole the more difficult to avoid tear out with a standard cordless drill.