Solid Carbide Twist Drill A\ 111 - Manufacturing standard: DIN 6537 - Manufacturing standard: DIN 6537 - Chisel edge grinding: TOOTOOL standard - Chisel edge grinding: TOOTOOL standard - Tolerance of cutting edge diameter: m7 - Tolerance of cutting edge diameter: m7 - Chip evacuation flute special designed, - Chip evacuation flute special designed, easy evacuation easy evacuation i l Dc