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Taps Standards ISO Metric Series Chart

TapsStandardsISOMetricSeriesChart.pdf

Taps Standards and Dimensions
A metric tap with an ANSI shank uses the same tap collet as an inch tap with the same shank diameter. There are some less common all-metric taps, but you often don’t find these anywhere inside the USA, Canada or Mexico.

ISO Metric Series

Tap Size Shank Dia.               A      Shank Length B              Size of     Square C    Overall Length     D
M09 2.5 (.098″) 17 2.1 x 5 25
M1 2.5 (.098″) 18 2.1 x 5 25
M1.1 2.5 (.098″) 18 2.1 x 5 25
M1.2 2.5 (.098″) 18 2.1 x 5 25
M1.4 2.5 (.098″) 21 2.1 x 5 28
M1.6 2.5 (.098″) 24 2.1 x 5 32
M1.7 2.5 (.098″) 24 2.1 x 5 32
M1.8 2.5 (.098″) 24 2.1 x 5 32
M2 2.8(.110″) 23 2.1 x 5 32
M2.2 2.8(.110″) 23 2.1 x 5 32
M2.3 2.8(.110″) 23 2.1 x 5 32
M2.5 2.8(.110″) 26 2.1 x 5 36
M2.6 2.8 (.110″) 26 2.1 x 5 36
M3 3.5 (.138″) 26 2.7 x 6 36
M3.5 4.0 (.157″) 29 3.0 x 6 40
M4 4.5 (.177″) 28 3.4 x 6 40
M4.5 6.0 (.236″) 33 4.9 x 8 45
M5 6.0 (.236″) 31 4.9 x 8 45
M6 6.0 (.236″) 34 4.9 x 8 50
M7 6.0 (.236″) 34 4.9 x 8 50
M8 6.0 (.236″) 38 4.9 x 8 56
M9 7.0 (.275″) 38 5.5 x 8 56
M10 7.0 (.275″) 43 5.5 x 8 63
M11 8.0 (.314″) 41 6.2 x 9 63
M12 9.0 (.354″) 48 7.0 x 10 70
M14 11.0 (.433″) 45 9.0 x 12 70
M16 12.0 (.472″) 42 9.0 x 12 70
M18 14.0 (.552″) 48 11.0 x 14 80
M20 16.0 (.629″) 48 12.0 x 15 80
M22 18.0 (.708″) 58 14.5 x 17 90
M24 18.0 (.708″) 68 14.5 x 17 100
M27 20.0 (.787″) 64 16.0 x 19 100
M30 22.0 (.866″) 70 18.0 x 21 110

AutoDrill generally offers tapping devices for single spindle operations as well as multiple spindle operations with ER11, ER16, ER20, ER25, ER32 and ER40 spindle types. We also offer TRxx and ASA style spindles as well as custom spindles if needed.

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