Robert Charles DIN 3 Flute Countersink 90° - 26.0mm Head DiameterThe Robert Charles DIN 3 Flute Countersink 90 is manufactured to DIN standards for producing precise 90 countersinks and chamfers with excellent surface finish. The 3 flute cutting design ensures smooth, stable cutting with reduced vibration and improved chip evacuation, helping to deliver accurate and consistent results. Suitable for use on a wide range of materials including steels, aluminium, and plastics, this countersink is ideal for engineering,