50 Pcs Tungsten Carbide PCB Circuit Board Engraving Tools Carbide Micro-Type Drilling Tools 0.5 mm-0.9 mm--50 Pcs Tungsten Carbide PCB Circuit Board Engraving Tools Carbide Micro-Type Drilling Tools 0.5 mm-0.9 mmMade of high quality material, high hardness, high wear resistance, not easy to bend and break.Small chip removal resistance, smooth chip removal and drilling.Sharper cutting edge can reduce cutting force and improve drilling quality.Strictly symmetrical cutting edges ensure efficient work and avoid deviation of drilling.It can be used in PCB, SMT, mold, metal processing, electronic industry і т.д. color: Random color (specified colors cannot be selected)Material:Cemented carbidePackage Contents: 50 x PCB drill bit(0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm each this)Only the above package content, other products are not included.Примітка: світлова зйомка та різні дисплеї можуть викликати колір елемента в картині трохи відрізняється від реальної речі. The measurement allowed error is + / - 1-3 см.