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Grewin&Cowee-High Quality Tools Carbide Micro Precision Drills/Tungsten Carbide Micro Diameter Drill Bits1
Machine Tools, Machine Tools Accessories, Drills, Drill Bits
Zhuzhou Grewin Tungsten Carbide Tools Co., Ltd.
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Product Description Raw micro grain material, high hardness and T.R.SCo: 10%,Wc:90%TRS: >3600 N/mm2HRA: 91.8-92.4, HRC:45-50/55-60/65/68Grain size: 0.4-0.6μmHelix angle: 30°-45 °Diameter of cutting edge: 0.2-0.9mm; 1-20mmDiameter of rods: 4-20mm Length: 50-100mmCutting Form: Flat,Square,Ball nose, Ball, Corner Radius, Taper Flute, etc.Flutes No.: 1-7Application and usageSuitable to cut Copper, Cast Iron, Carbon steel, Tool steel, Mould steel, Stainless steel, Plastic, Arcylic, etc. CoatingBlack oxide is an inexpensive black coating. A black oxide coating provides heat resistance and lubricity, as well as corrosion resistance. Coating increases the life of high-speed steel bits.Titanium nitride (TiN) is a very hard ceramic material that can be used to coat a high-speed steel bit (usually a twist bit), extending the cutting life by three or more times. However, when the bit is sharpened the new edge will not have the benefits of the coating.Titanium aluminum nitride (TiAlN) is a similar coating that can extend tool life five or more times.Titanium carbon nitride (TiCN) is another coating also superior to TiN.Diamond powder is used as an abrasive, most often for cutting tile, stone, and other very hard materials. Large amounts of heat are generated by friction, and diamond coated bits often have to be water cooled to prevent damage to the bit or the workpiece.Zirconium Gewin has been used as a drill bit coating for some tools under the Craftsman brand nameCoatingsHardnessHVThicknessumFriction CoefficientOxidation TempColorAlTiN35002.5-30.3900BlackTiAlN28002.5-30.3900VioletTiSiN360030.451000CopperAlTiSiN40030.41200BlueTiN25002-30.5600GoldProduct Show:More information, please kindly contact us.Best regardsGrewin carbide
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