Used in my M12 die grinder, ΒΌ" shank. Cuts steel and cast iron like butter. Seems pretty cheap for what it does, the amount of bits, that you get and the case that you don't have to throw away right away, it's actually a very nice thing.
Kutzall Extreme Cylinder Burr - Very Coarse Woodworking Abrasive Tungsten Carbide For Dremel, Foredom, DeWalt & Milwaukee
5 Review
8PC Carbide Burr Set 1/4" Shank, Tungsten Double Cut Rotary Die Grinder Bits - Cutting Burrs For Milwaukee, Dewalt And Die Grinder Accessories - Wood Carving Metal Working - Free Screw Extractor Kit
6 Review
πͺ Kutzall 3.1mm Extreme Taper Shaft
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Kutzall Original Cylinder Rotary Burr, 1β8" Shaft, Fine - Woodworking Attachment For Dremel, Foredom, DeWalt, Milwaukee. Abrasive Tungsten Carbide, 1β4" (6.3Mm) Dia. X 1β2" (12.7Mm) Length, C-14-EG
9 Review