Dremel 9903 Tungsten Carbide Cutter

by Dremel

Product Description

From the Manufacturer

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.

Product Description

Tungsten Carbide Cutter, 1/8" Diameter With 1/8" Shank, Carbide Is The Next Hardest Material To Diamonds, Used For Shaping, Smoothing and Material Removal, Use On Hardened Steel, Stainless Steel, Cast Iron, Non Ferrous Metals, Fired Ceramics, Plastics, Hardwoods and Other Hard Materials, Do Not Run In Excess Of 35,000 RPM.

Product Details

• Product Dimensions: 3.6 x 1.8 x 0.3 inches ; 0.2 ounces
• Shipping Weight: 1 pounds (View shipping rates and policies)
• ASIN: B00004UDJL
• Item model number: 9903
• Average Customer Review: 1.0 out of 5 stars  See all reviews (1 customer review)
• Amazon Best Sellers Rank: #50,229 in Home Improvement (See Top 100 in Home Improvement)
  • #20 in Home Improvement > Power & Hand Tools > Power Tool Accessories > Burs

Customer Reviews

Most Helpful Customer Reviews

3 of 3 people found the following review helpful:

1.0 out of 5 stars Very weak bit for cutting metal, June 12, 2011

By 

thomasterrible - See all my reviews

This review is from: Dremel 9903 Tungsten Carbide Cutter (Tools & Home Improvement)

This bit is advertised to cut all sorts of metals including hardened steel. It is horrible. I tried cutting 18 gauge sheet metal and it did not work well at all. I then tried cutting .063 inch 6016 aluminum, again it did not cut well at all. It is a 1/8 inch shank bit like the other carbide metal cutting bits by Dremel so it won't fit in the dremel trio which would help make routing more stable but the trio uses 3/16 shanks and runs at slower speeds so it is not fast enough to use this bit even were one to make it fit (no accessory is made to do this) and the higher speed tools will not allow for stable cutting. It is shockingly horrible that they are unable to produce a bit that will cut aluminum well. I had to use one of the EZ406 cutting wheels which does do a decent job of cutting the same piece of aluminum and that is a decent product. It is not designed to cut the curves so it needs to be followed by a file or something to smooth the cut, but though meant to be a cutoff wheel it does a far better job as a router than this bit that is meant to do so. This bit may work with very thin metal but I have not had any success with cutting steel or aluminum at all yet so even that is only speculation.