Product Name: Gw Carbide - Tungsten Carbide Flat Bottom Engraving End Milling Cutter CNC metal Engraving Bits Cutting Tools Type: Vertical Milling Cutter Material: Cemented Carbide Structure: Indexable Type Tooth Space: Sparse Tooth Tooth Form: Spiral Tooth Coating: Coating Types: Corner Radius, Roughing, Ball Nose, Flat Flute Diameter: 0.5mm-25mm, Customized Work Piece: HRC 45, 50, 55, 60, 65 Length: 50mm-150mm, Customized Flutes Number: 2, 3, 4, 5, 6 Delivery Time: 10-15 Days Shipment: FedEx, DHL, TNT, UPS, EMS, etc. Package: 1 PCS in a Plastic Tube, 10 PCS Per Group Trademark: GW Transport Package: Standard Box Specification: various and custmize Origin: Zhuzhou HS Code: 8207709000 Product Description 1.Original raw micro grain material, high hardness and T.R.S.a, Co: 10%,Wc:90%b, TRS: >3600 N/mm2c, HRA: 91.8-92.4, HRC:45/55/60/65/68d, Grain size: 0.4-0.6μmMicro grain raw materialGrain size: 0.4-0.6μmCo 10%, 12%TRS >3600 N/mm2Hardness HRA 91.8-92.5Work piece HRC45-50 HRC55-60 HRC65 HRC68Helix angle 30°-45 °Diameter of cutting edge 0.2-0.9 mm; 1-20 mmDiameter of rods 4-20 mm Length 50-100 mmCutting Form Flat, Square, Ball nose, Corner Radius, Taper Flute, etcFlutes No. 1-7HRC45HRC55HRC60HRC65Grain Size:0.6umCo:10 %Flexural strength:3350N/mm2Grain Size:0.6umCo:10 %Flexural strength:4000N/mm2Grain Size:0.5umCo:12 %Flexural strength:4300N/mm2Grain Size:0.4umCo:12.5 %Flexural strength:4300N/mm22. ApplicationUsed for cutting Carbon steel, Tool steel, Mould steel, Stainless steel, Titanium alloy, Copper, Cast Iron and Aluminium, etc.3. CoatingCoatingColorCoating TemperatureThickness (um)HVApplication TemperatureFriction coefficientTiAlNPurple-Gray<600°C3-53300800 °C0.3AlTiNBlack<600 °C3-53500900 °C0.3TiSiNCopper<600 °C3-535001500 °C0.4NaNoBlue<600 °C3-538001200 °C0.4CrNSilver Gray<480 °C2-2.52500700 °C0.3Product Show:More information, please kindly contact us.Best regardsGREWIN CARBIDE