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Dremel 9901 Tungsten Carbide Cutter

by Dremel
4 customer reviews

List Price: CDN$ 12.17
Price: CDN$ 9.99 & FREE Shipping on orders over CDN$ 25. Details
You Save: CDN$ 2.18 (18%)
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34 new from CDN$ 9.99
  • Tungsten carbide
  • Shapes, smoothes, removes hard material
  • Do not run in excess of 30,000 RPM
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Frequently Bought Together

  • Dremel 9901 Tungsten Carbide Cutter
  • +
  • Dremel 9902 Tungsten Carbide Cutter
  • +
  • Dremel 9904 Tungsten Carbide Cutter
Total price: CDN$ 32.64
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Product Information

Technical Details
Part Number9901
Product Dimensions10.2 x 5.1 x 1.8 cm
Item model number9901
Item Package Quantity1
Batteries Included?No
Additional Information
Best Sellers Rank #18,199 in Tools & Home Improvement (See top 100)
Shipping Weight9 g
Date First AvailableAug. 3 2011
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Product Description

A high-speed cutter made of tungsten carbide, the hardest material next to diamonds, 1/8" (3,2mm) shank. Ideal for shaping, smoothing or removing material from especially hard materials--including hardened steel, stainless steel, cast iron, nonferrous metals, fired ceramics, plastics and hard woods.

Customer Reviews

4.0 out of 5 stars
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Most helpful customer reviews

1 of 1 people found the following review helpful By AdrianS on July 2 2013
Verified Purchase
I bought a couple of these, together with some 9904 bits. While the 9904's are made in the US, the 9901 have the dreaded "Made in China" printed on them. After my experience with Chinese "titanium coated" drill bits, I expect that they are no better than the regular multipurpose bits, but at least twice as expensive (which seems to be confirmed by reviews on If you want Chinese cutting bits, you can get them much cheaper elsewhere, instead of paying a premium just for the Dremel logo.
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By Jeff larivee on Oct. 9 2014
Verified Purchase
Super tool , grind thrue anything ....
I machined many bicycle steel parts , and the tool last long and do the job !
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By b har on July 10 2014
Verified Purchase
great-one page to state or give a review is enough OK. More is a nuisance
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By Herman on Dec 10 2014
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Most Helpful Customer Reviews on (beta) 57 reviews
15 of 15 people found the following review helpful
Bad knockoffs Aug. 29 2012
By MT Vessel - Published on
Verified Purchase
Whatever these are, they are NOT Dremel 9901s. They mic out at 3/32" at the cutting head, whereas 9901s are 1/8" from shaft to head. Additionally, 1 of the 3 I ordered has burn marks on the metal, indicating it may have lost its temper. Finally, they do not arrive in Dremel packaging. They come in a plastic baggie with a sticky label on it.

If you are surface scrolling, these might work fine for you. If you are slotting, you will NOT achieve the size slot you need with these!
23 of 26 people found the following review helpful
Not genuine Dremel bits July 21 2012
By Buzz - Published on
Verified Purchase
I have Dremel 9901 cutters, and they come in sealed, super light-weight, blister packed Dremel packaging when you buy them anywhere on the planet. The cutting surfaces on the genuine bits are .122 inches in diameter.

I ordered a Dremel 9901 tungsten carbide cutter (advertised as "Dremel 9901 Tungsten Carbide Cutter by Dremel"). I received two loose bits in an envelope (no Dremel packaging), and one's cutting surface ranged from .095 to .096 inches in diameter while the other ranged from .088 to .091 inches in diameter. I also have no idea what these cutters are made out of since they aren't in manufacturer's packaging.

I contacted the seller and received this response: "It appears that you were shipped the wrong items by mistake. In order to correct this there are two options: would you prefer to receive the correct ones or receive a full refund (including shipping). If you choose to receive a refund, please provide your Pay-pal account and a transfer will be made. You may do as you see fit with the original items you received but do not send them back."

I told the seller that I wanted what I ordered, and he again sent me two loose bits. While the cutting surfaces on these bits are closer in size to the genuine bits, they're still off (one's .124 inches in diameter and the other's .120 inches in diameter). More importantly, no Dremel packaging. Again.

These are not genuine Dremel bits; they are most likely imitation bits purchased in bulk and shipped in pairs so customers think they're getting a deal. The reviews confirm this since real tungsten carbide bits don't perform so poorly or break so easily. Real tungsten carbide is also expensive, so why would you get two when you order one?
19 of 21 people found the following review helpful
Will cut through anything! Nov. 7 2010
By David Shamma - Published on
Really, will cut through just about anything. I've had this bit for 15 years - still sharp and straight. But use care...its not a drill; this is only for lateral cuts.
10 of 10 people found the following review helpful
Can only be used at lower speeds Feb. 18 2012
By M. Ryan - Published on
Verified Purchase
If you have a high speed application, skip buying this, the bits snap on impact. Just use a metal cutting bit.
21 of 25 people found the following review helpful
Not for hard or thick metals at all June 11 2011
By thomasterrible - Published on
I got this bit to cut/route some simple shapes for a bracket from a piece of 18 gauge sheet metal. It says it will cut through hardened steel etc. but it is not good for that at all. It will only be effective with very thin or soft metals. If it has such a difficult time with plain sheet metal I can't see how it could work at all for hardened steel. It will NOT work with a drill press as one reviewer suggests as it has no point and is not made to plunge. It needs to cut from an edge or through a drilled hole. Also it is a 1/8 shank so it did not fit my new trio model though I expect there may be an adapter available my local store did not carry one. It would probably be OK cutting through thin or soft metal. In comparison an EZ 406 cutoff wheel was not great but several times better at cutting the same metal than this bit. I am actually changing the material to some .063 inch 6061 aluminum to see if either of my dremel tools will cut well enough with the softer metal. So just don't expect this to cut through any hard or thick metal, it is for light duty only.