"A pin vise (or pin vice in the UK) is a miniature drill or twist drill that is a useful, fairly inexpensive specialized hand tool used a lot in miniature woodwork. ... This means it can also hold very thin, narrow drill bits."
Had to research what it was first, so its a small drill. Considering outside the UK it is spelled "pin vise", this is preferred. You have "pinvice.com" (UK spelling), so really...your market is the UK
Will you become a millionaire on this name? I'm going to say no. If you sold to a UK, pin vice provider that cares...they'd pay low hundreds, in my view (these places will sell much more than just pin vices)
Incredibly niche, make some UK only calls. However, I believe you will struggle. Sorry