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Drills
(Parallel Shank Counterbores With Pilots)


Material: H.S.S

Metric system:mm

SP D d1 d2 L1 L2 L
M3 5.9 3.2 6 3 10 45
M4 7.4 4.2 6 4 12 42
M5 8.9 5.2 6 5 13 51
M6 10.4 6.2 8 6 15 58
M8 13.4 8.2 10 8 16 67
M10 16.8 10.3 10 8 16 67
M12 18.8 12.4 12 12 20 83
M14 24 14.4 12 14 25 90
M16 26 16.5 16 16 28 100


British System:inch

SP D d1 d2 L1 L2 L
1/4 7/16 1/4 5/16 1/4 5/16 2-1/2
5/16 1/2 5/6 3/8 5/16 3/8 2-1/2
3/8 5/8 3/8 7/8 5/16 1/2 3"
1/2 3/4 1/2 1/2 3/8 5/8 3"

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