https://www.drill-hq.com/2012/04/metric-thread-cut-tap-drill-sizes-chart/
Metric Thread Cut Tap Drill Sizes Chart - AutoDrill
Apr 8, 2022 - MetricThreadsChart.pdf METRIC THREAD CUT TAP DRILL SIZESTap / Thread Size*Basic Major DiameterTap Drill Size**M1.6 x 0.350.0631.25mm or #55M2 x 0.40.07871.60mm...
tap drill sizesmetric threadcutchart