OSG Micro Carbide Drill - 20D Internal Coolant - IchAda Coated - 1.60mmOSG Micro Carbide Drills 20D Internal Coolant IchAda Coated are engineered for extreme depth drilling with outstanding precision and reliability. The 20D internal coolant design ensures superior chip removal and thermal control, significantly reducing wear during prolonged operations. Enhanced by the IchAda coating, these drills offer exceptional hardness, wear resistance, and efficiency, even in high speed machining of challenging materials. Ideal