#Drill and tap chart free#

#Drill and tap chart free#

eg for 3/4.10 UNC pitch = 0.1, diameter = 0.75, tapping drill = 0.65 = 16.5mm. THREAD/SCREW - Drill & Tap Chart Machine Screw Size Threads Per Inch Minor Dia Tap Drills Clearance Hole Drills Alum, Brass, & Plasitcs 75 Thread Stainless Steel, Steels & Iron 50 Thread All Materials Close Fit Free Fit or Dia Major Dia Drill Size Decimal Equiv. The tap size chart is a table that lists standard size taps, specifying the diameter and thread spacing, for fractional, metric, and screw sizes. They are stuffed with lots of useless information and are often so small you need a magnifying glass to read them. eg for an M5x0.75 thread the tapping drill is 5-0.75mm = 4.25mm.įor Imperial (inch) threads the tapping drill size is calculated in the same way, diameter minus pitch. Simple Drill and Tap Chart - British Every tool site has a Drill and Tap Chart. Includes Tap drill sizes for cutting and forming taps Includes NPSC pipe. As a rule of thumb, for Metric threads, the tapping drill can be calculated by subtracting the pitch from the diameter of the thread. Includes decimal equivalent tables for Wire, Letter, Fractional, and Metric Drills.