Model # 6-4008BW

Internet #202504034

Store SO SKU #1000725622

QEP 4 in. Black Widow Micro-Segmented Diamond Blade for Porcelain and Ceramic Tile


4 in. Black Widow Micro-Segmented Diamond Blade for Porcelain and Ceramic Tile

$1295 /each
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Product Overview

The Black Widow Diamond blades are designed for quick cutting of hard tile including porcelain, ceramic, granite and marble, without wobble or chipping. Independent lab test results have proven that Black Widow specialty blades continuously out perform the competition in durability for a longer life and speed of cut, reducing project time. The unique diamond-shaped micro segmented laser cutouts around the perimeter keep the blade cooler for superior performance and a longer life.

California residents: see   Proposition 65 information

  • Porcelain certified diamond blade
  • Ideal for high speed cutting of hard masonry tile
  • Unique diamond-shaped laser cutouts prevent blade wobble and keeps blade cooler for a longer life
  • 7 mm high rim is larger than standard blades and extends life



Blade thickness (in.)
Product Width (in.)
Saw blade diameter (in.)


Dry/wet use
Flooring Product Type
Ceramic Floor/Wall Tile
Material Cut
Product Weight (lb.)
Saw Blade Material
Tile Tool Type
Replacement Blades
Tool Type
Saw Blade
Tools Product Type
Power Tool

Warranty / Certifications

Manufacturer Warranty
To be free from manufacturing defects

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Customer Questions & Answers

Will this blade fit a standard circular saw?

Asked by: Nick
If you have a 5/8" arbor.
Answered by: TheRiz
Date published: 2015-11-04

will this blade fit my Briccolina #60080 wet saw????. Please advise ASAP. Thanks

Asked by: Anonymous
If it has a 5/8" arbor.
Answered by: TheRiz
Date published: 2015-11-04

will this blade work on a grinder?

Asked by: MikeG
Yes, this product is compatible with a grinder.
Answered by: CommunityAnswer
Date published: 2015-09-20
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Customer Reviews

4 in. Black Widow Micro-Segmented Diamond Blade for Porcelain and Ceramic Tile is rated 5.0 out of 5 by 11.
Rated 5 out of 5 by from Blade delivers fast smooth cuts...even when cutting dry porcelain tile. I was easily able to cut... Blade delivers fast smooth cuts...even when cutting dry porcelain tile. I was easily able to cut two dozen or more tile and the blade is still n excellent shape. I highly recommend this blade as others I have used in the past would chip the tile.
Date published: 2017-02-28
Rated 5 out of 5 by from Excellent blade We used this blade for cutting Marazzi porcelain tile 24”x6” with tile bull nose and for tiled splash wall. The blade did excellent job, leaving behind nice and smooth cut. With this blade we cut opening in floor tile for toilet drain (pic 1). For smaller curve cuts this blade is too big. Pic. 2. shows cut in tile for water and drain in vanity cabinet. In kitchen splash wall tile (pic. 3.) we used it for cutting openings for electrical outlets and lot of cuttings of this ceramic tiles.The blade did it's job on excellent. Even now although all worn out it still cuts the tile well, just not with perfectly smooth edge like before.
Date published: 2016-09-18
Rated 5 out of 5 by from A Cut Above I got this blade to use in my Makita 4" Grinder. The first thing I noticed was that it can be fitted to variable arbor sizes, second is that the package easily opened so that you can put the blade back for future use. The blade installed easily on my grinder. While I am not in the tile setting trade I still needed a blade to do some small installations and remove and repair work. I have many wheels for my grinder but I really like the thin segmented type blade, and it will work wet or dry. When using a blade in a hand held grinder and precision counts a thin high speed blade such as this is key. It's the difference between trying to use a knife to cut cheese or a wire cheese cutter. Only having used this blade a few times it still seems to cut the same as the first time I used it. When this blade wears out I will not think twice about replacing with another one.
Date published: 2015-08-08
Rated 5 out of 5 by from Nice Blade I used this blade to cut about 20 pieces of porcelain tile this past weekend and was very satisfied with the blade. The cuts were very smooth with no chipping and the narrow kerf reduced the load on my saw motor making cuts easier and faster. Will definately purchase again.
Date published: 2015-03-24
Rated 5 out of 5 by from Don't Cut Tile Without this Blade! Our Bath remodel involves tile that we're installing ourselves. Our tile is porcelain faux carara marble high gloss so it's imperative the cuts are precision and no chips. This blade moves through the high gloss glaze of the porcelain tiles so easy and produces a crisp cut and NO chips. We did not see a difference in the cut from the first tiles to the last tiles we cut. This blade can make the difference between a good job and an excellent job. Do yourself a favor and buy this blade.
Date published: 2015-09-22
Rated 5 out of 5 by from Sturdy and Cuts well I replaced the blade in my tile cutter with the Black Widow Micro Segmented Diamond blade to cut ceramic tile. It is very sturdy, and cuts cleanly. It did not break or chip the tile. I noticed a difference in the way my tile saw was operating, most likley because of its ability to makes smoother cuts. It makes the job easier.
Date published: 2015-06-25
Rated 5 out of 5 by from A Good Diamond Blade. I got this Black Widow Blade to cut Porcelain Wall Tile. I already have the 7 inch Black Widow. This is the only brand of Tile Saw Blade I'll buy from now on. Very Sharp and last a long time. I can't even guess how many cuts I've made. Excellent blade and high Quality.
Date published: 2015-07-17
Rated 5 out of 5 by from Works well So the blade works really well. I had originally intended to use this blade with my Dremel ultra-max saw, but the arbors didn't match. No fault of this blade, mind you. This blade comes with built in reduction bushings that take it from 5/8 to 20mm to 7/8. The dremel saw uses a 7/16 arbor, so it was too small. Ultimately, I chucked this blade up in my Shopsmith and it worked great. The cut finish is really nice too. I used the old trick of taping my cut path out of habit. That has proven to keep from getting chipping at the edges which is super important for tile work. Overall, I like the blade. I'll get the bigger version next time.
Date published: 2015-05-06
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