Standard Fdrill maximum material thickness

Maximum material thickness for thread holes
Indication in mm

Thread Fdrill Diameter Max. material thickness Collet Ø Total length working part
Short Short/Flat Long Long/Flat Short Long
M2 1.8 1.6 1.8 2.2 3.2 6 5.8 7.8
M2.5 2.3 1.6 1.9 2.3 3.5 6 6.1 8.1
M3 2.7 1.7 2 2.4 3.7 6 6.7 8.7
M4 3.7 1.8 2.2 2.6 4.2 6 8.1 10.3
M4x0.5 3.8 1.8 2.2 2.6 4.2 6 8.2 10.5
M5 4.5 1.9 2.4 2.7 4.6 6 9.2 11.8
M5x0.5 4.8 1.9 2.4 2.7 4.7 6 9.6 12.4
M6 5.3 2 2.5 2.9 5 8 10.5 13.8
M6x0.75 5.6 2 2.5 2.9 5 8 11 14.5
M6x0.5 5.8 2 2.6 3 5.2 8 11.2 14.7
M8 7.3 2.2 2.9 3.3 5.9 8 13.5 18.1
M8x1 7.5 2.3 2.9 3.4 6 8 14 18.7
M8 x0.75 7.6 2.3 2.9 3.4 6 8 14.1 18.8
M10 9.2 2.6 3.2 3.7 6.6 10 16.8 22.5
M10x1.25 9.3 2.6 3.3 3.7 6.7 10 17 22.8
M10x1 9.5 2.6 3.3 3.8 6.7 10 17.3 23.2
M12 10.9 2.8 3.5 4 7.2 12 19.8 26.4
M12x1.5 11.2 2.8 3.6 4.1 7.3 12 20.3 27.1
M12x1 11.5 2.9 3.6 4.2 7.3 12 20.8 27.8
M14 13 3 3.9 4.5 7.9 14 23.5 31.3
M14x1.5 13.2 3.1 4 4.6 8 14 23.8 31.6
M16 14.8 3.3 4.2 4.8 8.5 16 26.9 35.4
M16x1.5 15.2 3.4 4.3 4.9 8.7 16 27.6 36.3
M18 16.7 3.5 4.6 5.2 9.2 18 30.4 39.7
M18x1 17.5 3.7 4.8 5.6 9.5 18 31.9 41.5
M20 18.7 3.8 5 5.7 9.9 18 34.1 44.3
M20x1.5 19.2 3.9 5.1 5.8 10 18 35.1 45.5
M20x1 19.5 3.9 5.2 5.8 10 18 35.6 46.2
G1/16 7.3 2.3 2.9 3.3 5.9 8 13.5 18.1
G1/8 9.2 2.6 3.2 3.7 6.6 10 16.8 22.5
G1/4 12.4 2.9 3.8 4.3 7.8 12 22.4 29.8
G3/8 15.9 3.4 4.5 5 8.9 16 28.9 37.9
G1/2 19.9 4 5.2 5.9 10 18 36.3 47
G3/4 25.4 4.8 6.2 7 10.4 20 46.4 59.6

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