If you explain what you want to achieve through tracing your material boundary there's a chance someone might have a solution.
A mechanic once walked up to me in the body shop and asked to borrow a screwdriver, when I asked what kind and he said it didn't matter.
I explained that it did matter as the right screwdriver avoids tool and fastener damage and wear, he replied that he simply wanted to lever a rocker cover off a cylinder head and the type of screwdriver didn't matter.
I closed the screwdriver drawer in my Snap-On roll cab, opened the pry-bar and lever drawer and offered him the right tool for the job.
Rather than asking for the tool you think you want it is often better to explain what you want to achieve as even if the tool you think you want doesn't exist someone may have a solution to your problem,
Regards,
- Nick