The table below shows the tap drill size for the given thread size. If you cannot find your drill bit size, use the formula Thread Diameter – Pitch = Tapping Drill Size. You may refer to the drill bit size chart below for a quick guide to make sure you get the right tools and type...
The part of s drill by which it is held and driven Size Measurement reference for diameter size of a drill, expressed as either fractional, wire, letter or metric Speed The speed of a drill is determined by the rate which the outer edge of the tool rotates in relation to the material b...