Revolutionary - Titanium Nitride Coating. Guaranteed minimum of 3 times extended tool life. Faster, smoother & cooler finishing of all materials. Brand : Goldies Coating : TiN (Titanium Nitride) Cut : Cone Dremel Code : Carving/Engraving Format : Cone Length : 2.1mm (.083") Made of : High Speed Steel Shank Diameter : 3/32" (2.35mm) Shank Type : HP Shape : 7 Tool : Rotary Tool Tool : MOTO-TOOL