15 pieces, high-quality HSS (DMO5) steel, hardness on the cutting part = up to d1 = 3.0 mm min. 61 HRC, 3.0 to 6.0 mm at least 62 HRC, over 6.0 mm 63 HRC / hardness on the shaft min. 45 HRC, thread: metric DIN ISO 13, cutting direction: right-hand cutting, in an impact- and break-resistant ABS box, contents:, nominal thread size - pitch mm - thread core hole - total length - thread length:, M 3 - 0.50 - 2.50 - 40 - 10, M 4 - 0.70 - 3.30 - 45 - 12, M 5 - 0.80 - 4.20 - 50 - 13, M 6 - 1. 00 - 5, 00 - 50 - 15, M 8 - 1, 25 - 6, 80 - 56 - 18, M 10 - 1, 50 - 8, 50 - 70 - 24, M 12 - 1, 75 - 10, 20 - 75 - 29
