Solid carbide step drills for forming taps WKT VHM AT DIN ~6537 P M K Material groups N S H EInxtecrnuatilocnooling 90° Quality of material VHM Coating AT Norm ~DIN-6537 MNakrĆójd/1ChamferMFl1l2 l3 Ć d2 Ćd3h6 Tol. m7 INDEX W9-704010 2,80 M3 62 20 12 6 6 02803,70M4642414660370 6 4,65 M5 80 28 20 6 6 0465 5,55 M6 80 34 24 8 8 0555 7,45 M8 80 47 30 10 10 0745 9,30 M10 90 55 40 12 12 0930 11,20 M12 100 60 45 14 14 1120 Example of order 161 W9-704010-0235 WT 1300 2,35 DIN-6537 VHM