d1d1 d2d2 aa MASTERTAP EG High performance machine taps UNC (STI) American unified coarse thread UNC, MASTERTAP ASME B18.29.1600 B-HL E-R45-HL 1 P l1 l3 l2 HSSE PM l1 HL l2 DIN DIN ~371 ~376 P M K P M K Material groups N S H N S H Hole type < 3d < 2,5d Quality of material HSSE-PM HSSE-PM Coating HL HL Chamfer B / 4-5P E / 1,5-2P Norma ~DIN-371(DIN-40435) EG UNC(STI)Ć d1 1/P l1 l2 l2R45 l 3 Ć d2 a Tol. 2B 2B INDEX C4-118M01 C4-718M01 No4-40 3,671 40 63 13 7 21 4,5 3,4 3,10 6804 No6-32 4,536 32 70 14 8 25 6,0 4,9 3,80 6806 No8-32 5,197 32 80 16 10 30 6,0 4,9 4,40 6808 No10-24 6,200 24 80 17 12 30 7,0 5,5 5,20 6810 1/4-20 8,002 20 90 20 15 35 8,0 6,2 6,70 6827 5/16-18 9,771 18 100 22 18 39 10,0 8,0 8,40 6828 Norm ~DIN-376(DIN-40435) EG UNC(STI)Ćd1 1/P l1 l2 l2R45 l 3 Ć d2 a Tol. 2B 2B INDEX D4-118M01 D4-718M01 3/8-16 11,587 16 100 15 15 - 9 7 10 6829 7/16-14 13,469 14 110 18 18 - 11 9 11,6 6830 1/2-13 15,237 13 110 18 18 - 12 9 13,3 6831 9/16-12 17,039 12 110 20 20 - 12 9 14,9 6832 5/8-11 18,875 11 125 20 20 - 14 11 16,5 6833 3/4-10 22,349 10 140 25 25 - 18 14,5 19,75 6835 ISO Vc (m/min) P 5-40 5-40 M 5-15 5-15 K 10-30 10-30 N 10-30 10-30 S 1-8 1-8 Example of order Available from stock C4-118M01-6804 On request 87 Tap MasterTAP EG No4 UNC 2B ~DIN-371 B HSSE-PM HL