Put the tap in the handle or wrench and add some lubricating/cutting oil to the tap. The oil will help the tap cut into the material and makes removing the cut material (chips) easier. The …

Tapping Screw Threads: From time to time it is needful to screw something into something else, which may not yet accept a screw.  If the something else is metal, screw threads can be …

The process of tapping uses two separate tools: the tap which cuts the threads on the inner diameter of the hole, and the die which cuts the threads on the outer diameter of the bolt or …

Prior to drilling the hole you will eventually tap, determine what size you need to drill for the bolt you are trying to screw in. Your hole will be smaller than the diameter of the bolt, because the …

A tap is used to either make new threads in a hole, or repair damaged threads. Taps can be purchased, but here is how to make one out of any bolt. After you repair the damaged threads, …

We then tap this hole to permit the threaded insert to "screw" in. In the photo you'll see that the inert is essentially a coiled spring. The outside diameter is going to fit the oversize hole that we …

Open the chuck of the drill and place over the head of the screw, then hand tighten to secure the jaws of the chuck over the screw. Set the drill to reverse and gently back the screw out of the …

The idea is to make cuts along the bolt threads so that it somewhat resembles an actual thread tap. Step 5:

Leave the glue to dry for a few hours. Once it's dry, take your bolt and re-screw it into the now completed hole. It may be a little tight at the beginning as the bolt needs to push/cut the glue …

The added heat from the welding really helps free up the offending tap or bolt. Once it's completely cool, feel free to add a little penetrating lube just for redundancy's sake, then …