Please note: When using the above belt selection tool, subtract two inches for 1/2" wide "A" belts and subtract three inches for 21/32" wide "B" belts. This is because the selection tool favors the outside diameter of the belt, not the inner diameter which is what the belt number actually indicates.
To resize image larGER/SMAller, depress CTRL button on keyboard and scroll UP with mouse wheel.
Divide the metric tapping drill bit size on the above chart by 25.4 to convert to the CLOSEST fractional drill bit size instead.
Click image below for detailed thread diameters & pitches
This chart informs you which drill bit and tap to use for the respective keensert/keysert you wish to install into a damaged threaded hole.
