I'm not really a fan of hard pencil eyeliners. I've tried them, given them a chance but they never did succeed in getting me into them. They are always difficult to be applied on and drag my lids like no tomorrow since I have to apply force to have the colours to appear.
Basically a kohl eyeliner pencil has similar texture to a cream eyeliner that comes in a jar, the only difference would be that it is in a pencil form which makes it easier for beginners to have control over it.
If you're looking at precision, a kohl pencil eyeliner with a creamy consistency would not be the best choice. I would either use a gel liner or liquid liner. It gives more definition as compared to hard pencil liners too.