When wrapping butt wraps and using a thread tool to pack the threads, from time to time I have had trouble with the tool breaking or damaging the thread. I tried a plastic tool and a metal tool (sort of like a scribe) and with both had the same trouble.
In my search for a better tool for pushing and packing thread, I came across a “cutical stick” at the local drug store. This is a wooden stick with tappered ends used for pushing the cutical of the fingernail back. Why, I don’t know, but thats what it was made for. Well, these things work great for pushing and packing threads without damaging them. The best $2.00 I’ve spent.
Lee’s Custom Rods