Drill'n'Tap is an application geared towards machinists, engineers, designers, and student for the purpose of cataloging information in regards to threaded fasteners. It provides information such as drill sizes for tapping, clearance hole sizes, and common thread pitches. Most fields can be tapped on to give an instant decimal equivalent and/or unit conversion. This initial release contains data for ISO and UTS fasteners (metric and imperial units) Other tools include a linear unit converter, Sheet metal thickness guide, and number/letter drill conversions. Future updates to include more tools as well as the following standards: -AN -BSPT -NPT Comments & feedback welcome!