HomeAppsToolsDrill and Tap CalculatorApps like Drill and Tap Calculator Here are some great alternatives to Drill and Tap Calculator by ReidenBike : Machine Screws Drill/Tap Info ★4.7 Drill Bit Charts Pro ★4.8 Tap, Drill and Nut Chart ★3.9 Screw Thread Data Calculator ★4.6 Drill Bit Size & Length Chart ★4.8 Tap And Drill Chart Calculator ★4.5 Thread pitch gauge ★4.1 Nuts & Bolts ★3.8 Thread calculator ★4.4 Nuts & Bolts PRO ★4.1 Dr DE Lite - Drilling Engineer ★4.3 Machining Calculator ★3.4 CNC Machinist Calculator Ultra ★3.7 Machinist Calc Pro 2 ★4.8 iMachinist ★3.4 Machining calculator ★3.6