"center drill for metalworking"

尺寸 Size D D1 D2 L L1(MAX) 1 4 2.12 35.5 1.3 1.6 6 3.35 45 2 2 8 4.25 50 2.5 2.5 10 5.3 56 3.9 3.15 10 6.7 56 3.9 4 14 8.5 62 5 5 18 10.6 70 6.3 6.3 20 13.2 75 8 8 20 13.2 75 8 10 20 13.2 75 8 12 20 13.2 75 8

尺寸 Size d d1 R L 1 4 2.12 35.5 1.5 4 2.9 35.5 2 5 3.7 40 2.5 6 4.6 45 2.5 6.3 4.6 45 3 8 6 50 4 10 78.5 56 5 12 10.6 63 5 12.5 10.6 63 6 14 13.2 65 6.3 16 13.2 71