Hi Macman www.elevenlettr.co.uk equates to 21 if I count correctly including dots.
That seems an awful lot to put on one line so it would be readable. I won't suggest pencil kits as that would be a customer preference.
You could do some measuring of your preferred kit with the suggestion that anything less than a 3mm letter height is not readable at a glance.
Also the softer woods tend to fray and not produce such a crisp edge.
Taking this into consideration I don't think I have the experience necessary to feel confident in doing your engraving for you.
David (jimjam) may have more of a clue, I love to look at his work he inspires me.
The other suggestion and one that would give you more business is to engrave a box with the pen / pencil in it.
Neil has a saying worth stealing "It's not a gift until it's boxed and presented" or something along those lines.
Ask him he is brilliant with words (OH TO BE EDUCATED INIT?)
As for Pm hit the avatar and select send private message.
A pen in a velvet pouch is a pen in a velvet pouch, a pen in box is a gift.
