CoreLine – Stepped drills for centring, factory standard ▲ with flat ▲ Countersinking angle 60° ▲ Special drill for creating tapping drill holes with centring, 60° countersinking angle according to DIN 332, sheet 2, form D. ▲ Point thinning ≥ Ø 3,3 mm ▲ the feed rate has to be selected based on the small Ø DC DC_1 DC_2 DCONMS SDL_1 SDL_2 15° s LCF OAL 90°60° SIG SB vap. SIG 118° HSS HD For threads DC_1 h8 DCONMS h7 DC_2 s OAL SDL_1 LCF SDL_2 10 350 ... mm mm mm mm mm mm mm mm M4 3,3 8,0 4,3 6,75 63 11,0 23 1,60 10350040 M5 4,2 10,0 5,3 8,45 67 13,0 27 2,15 10350050 M6 5,0 12,5 6,4 10,45 71 16,0 33 2,90 10350060 M8 6,8 14,0 8,4 12,50 88 19,5 41 3,50 10350080 M10 8,5 16,0 10,5 14,85 94 23,0 47 4,70 10350100 M12 10,2 20,0 13,0 18,45 105 28,0 59 6,50 10350120 M16 14,0 25,0 17,0 23,40 132 33,0 67 8,30 10350160 M20 17,5 31,5 21,0 29,35 145 38,0 77 10,35 10350200 P ● M ○ K ● N ○ S ○ H O ○ → Here you will find the cutting data standard values. 77 HSS drilling Step drills
