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DEWALT D180032 2-Inch Standard Bi-Metal Hole Saw

4.6 out of 5 stars 37 customer reviews
| 4 answered questions
List Price: $12.04
Price: $4.99 & FREE Shipping on orders over $49. Details
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2"
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  • Double tooth design strengthens each tooth for longer life and improved durability
  • Sharper Tooth Geometry cuts material faster for faster drilling
  • Thick, hardened backing plates prevent thread stripping
  • Deep cut style holes saws will cut 2x material in 1 pass.
  • Increased high speed steel height (highest in the industry) improves hole saw durability
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Frequently Bought Together

  • DEWALT D180032 2-Inch Standard Bi-Metal Hole Saw
  • +
  • DEWALT DW1803 Heavy Duty 7/16-Inch Shank Quick Change Mandrel (Fits Hole Saws 1-1/4-Inch - 6-Inch)
Total price: $20.58
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Product Description

Size:2"

Product Description

Double tooth for longer life and improved durability, cuts material faster for faster drilling. Thick, hardened backing plates prevent thread stripping. Increased high speed steel height improves hole saw durability.

From the Manufacturer

DEWALT D180032 2-Inch (51MM) Standard Bi-Metal Hole Saw

Product Information

Size:2"

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Customer Reviews

Top Customer Reviews

4.0 out of 5 starsDeWalt Quality - No Mandrel Included
By C. Umphress on December 1, 2012
Size: 2" Verified Purchase
This is a decent hole saw, but note the mandrel is not included. Choose one of the following DeWalt mandrels if you don't already have one that fits: DW1818 (3/8"), DW1802 (7/16"), DW1803 (7/16"), DW1804 (5/8").
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5.0 out of 5 starsGreat hole saws, wonderful when making holes for conduit, plumbing, log railing and more!
By D Taylor on September 26, 2013
Size: 2" Verified Purchase
During the process of building a new home I had the need to run some conduit lines. I needed a few different sizes due to the places I needed to put the conduit, and the sizes I would be using. Having used these Dewalt hole saws years ago when building a log home I bought some new sizes and found that yet again they are winners and worked wonderfully. I love the dual action cutting edges, just in case I end up going through a nail in the framing as I cut a hole.

To be clear, these are just the hole saw portion, you will need the proper Dewalt Mandrel to screw them onto and make them useful.

There are a couple of tricks to learn when using these hole saws. The first is; I've found that rocking the drill slowly seems to work very well and keeps the hole smoothly moving along. I use a larger Dewalt drill with a large enough opening. The standard 7/16" Mandrel used by these won't fit into the smaller 3/8" drills that are typical for hand held drills. I also found that using a 120v drill made it easier and avoided any bogging as I cut through wall top plates. My 12v drills just can't handle these.

When you get through a piece of 2x4 for example, the hole saw is filled with the small hole you just cut. You have to get the core piece out before you can drill through another layer of wood. You can use a screw driver and sort of pry it out from the sides using the slits that are cut into the drill. Another way is to unscrew the drill from the quick change mandrel and punch it out from the center using a screwdriver and hammer.

If there's any negative with these drills, it's that sometimes when they are new, they are difficult to get screwed onto the mandrel the first time. The paint is just enough to make you think you might be cross threading it.Read more ›
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5.0 out of 5 starsSharp Blade with Clean Holes
By John E on August 22, 2014
Size: 2" Verified Purchase
Well, to be frank, this thing is deadly. As with all of the Dewalt Bi-Metal hole saws I have, this thing comes out very sharp.It chews through wood with little effort. I use them with a cordless drill and can get through many holes before my drill needs a battery change out.

The hole dimensions are accurate, the cuts are smooth. The drill attachment (not included, so if you don't have one, you do have to purchase that separately) holds the saw well with no wobble, but is still fairly easy to engage and disengage (disengagement is where I tend to remind myself how sharp the saws come, so be a little careful). There are small knockout holes so you can get the wood plug out of the saw.

I typically use the saw in Red Oak and very occasionally light aluminum. The blade has stayed sharp through a few dozen holes. I don't know about professional use, but for the hobbyist (which I am) I wouldn't go with anything else. Very satisfied.
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5.0 out of 5 starsProfessional-quality product, built to last
By Ernst W. Mayer on August 31, 2015
Size: 2" Verified Purchase
As this was my first hole saw and I didn't already have the mandrel portion, I ordered the combo of 2"-dia (2"-max-depth) hole saw and 7/16"-shank mandrel [DW1803] recommended by Amazon. The 7/16" mandrel shank is too large for my venerable 3/8"-chuck corded Black & Decker drill, so I used it in my 1/2"-chuck cordless Dewalt drill. In retrospect, since the mandrel shank is nicely hex-shaped to prevent slippage within the chuck, the similar 3/8"-shank Dewalt mandrel [DW1805] would have also worked just fine. If you only have a drill with a 3/8" chuck or have drills with various chuck sizes like me, that's the one you want.

To newbies like me the quick-change mandrel is a little confusing at first, so thanks to the previous commenters who provided tips on how to use it. Briefly, the Dewalt quick-change mechanism is both a locking and anti-locking device. The 2 pegs in the silver-colored locking collar snap into one of the 2 opposing-hole pairs in the bottom of any Dewalt hole saw to hold the cutting end in place, but at the same time prevent the hole saw from locking itself onto the mandrel under the torque of drilling. Just slip the mandrel shank into your drill chuck & tighten down, then with the drill positioned the way you'll be using it (butt end against your belly), use one hand to pull the locking collar toward you as far as you can, and the other hand to screw the barrel end of the hole saw onto the threaded part of the mandrel. You should end up such that tightening the barrel part all the way down leaves the locking pins misaligned with both of the crosswise pairs of receiving holes, at which point you unscrew the barrel just enough to allow the pins to snap into the nearest hole pair.Read more ›
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4.0 out of 5 starsFour Stars
By briangh54 on October 27, 2014
Size: 2" Verified Purchase
Cut right through 1/8" aluminum.
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5.0 out of 5 starsGreat hole saw for wood and plastic
By Bruce Wayne on May 29, 2016
Size: 2"
This is a good quality hole saw. Make sure you buy a mandrel if you don't have one already. Cuts through wood like butter. But if you need to cut holes in plastic, make sure to put the drill in reverse and push down hard for a clean cut. Otherwise you'll get rough/jagged edges.
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5.0 out of 5 starsWorks great on sheet metal
By S. Greene on February 22, 2014
Size: 2" Verified Purchase
I needed a hole saw to drill holes in my gutters so I could install drain chains. Got this because I already had the mandrel. Saw worked great but I did break the pilot drill bit. Just make sure you can control the saw well and your speed!
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