MetricDrillSizesChart.pdf Drill Decimal Drill Decimal Drill Decimal Drill Decimal .38mm .0150 2.55mm .1004 6.25mm .2461 10.20mm .4016 .40mm .0157 2.60mm .1024 6.30mm .2480 10.50mm .4134 .42mm .0165 2.65mm .1043 6.40mm .2520 10.80mm .4252 .45mm .0177 2.70mm .1063 6.50mm .2559 11.00mm .4331 .48mm .0189 2.75mm .1083 6.60mm .2598 11.20mm .4409 .50mm .0197 2.80mm .1102 6.70mm .2638… Continue reading Metric Drill Sizes
View detailsTapDrillSizesChart.pdf TAP DRILL SIZES FOR CUT AND FORMED THREADS TAP SIZE TAP DRILL SIZE Cut Thread Formed Thread 0-80 3/64 .0469 54 .0545 1-64 53 .0595 1.65 mm .065 1-72 53 ,0595 1.7 mm .0669 2-56 50 .0700 5/64 .0781 2-64 50 .0700 2 mm .0787 3-48 46 .0810 43 .089 3-56 45 .0820 2.3… Continue reading Tap Drill Sizes
View detailsMATERIAL BRINELL HARDNESS Drilled Diameter With Suggested Feed Rate Below 1/16″ 1/8″ 1/4″ 1/2″ 3/4″ 1″ 1-1/2″ 2″ Aluminum 99-101 .001 .003 .007 .012 .016 .020 .025 .030 Aluminum Bronze 170-187 .001 .003 .004 .008 .010 .012 .015 .020 Balkelite – .002 .005 .006 .008 .010 .012 .015 .015 Brass 192-202 .001 .003 .004 .008… Continue reading Hardness Scale for Various Materials
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